LilyPond — Usage

This file explains how to execute the programs distributed with LilyPond version 2.25.20. In addition, it suggests some “best practices” for efficient usage.

For more information about how this manual fits with the other documentation, or to read this manual in other formats, see Manuals.

If you are missing any manuals, the complete documentation can be found at https://lilypond.org/.


1 Running lilypond

This chapter details the technicalities of running LilyPond.


1.1 Normal usage

Most users run LilyPond through a GUI; if you have not done so already, please read the Tutorial. If you use an alternate editor to write LilyPond files, see the documentation for that program.


1.2 Command-line usage

This section contains extra information about using LilyPond on the command line. This may be desirable to pass extra options to the program. In addition, there are certain extra ‘helper’ programs (such as midi2ly) which are only available on the command line.

By ‘command line’, we mean the command line in the operating system. Windows users might be more familiar with the terms ‘DOS shell’ or ‘command shell’. macOS users might be more familiar with the terms ‘terminal’ or ‘console’.

Describing how to use this part of an operating system is outside the scope of this manual; please consult other documentation on this topic if you are unfamiliar with the command line.


The PATH environment variable

[You can skip this section if you use a package manager like MacPorts to install LilyPond; PATH should already be set up correctly.]

Throughout the LilyPond manuals, examples simply show lilypond as the program to call. However, this only works if the PATH environment variable is adjusted so that LilyPond’s binary directory is included.

Assuming that you have unpacked a LilyPond binary package for version 2.25.20 within a directory /home/me, the binary directory to be added to PATH is

/home/me/lilypond-2.25.20/bin

On Windows, a typical directory might be

C:\Users\me\lilypond-2.25.20\bin

Please consult the documentation for your operating system (or do a search in the internet) how to actually modify PATH. In case you are updating from an older LilyPond version you should ensure that the old LilyPond binary directory is removed from PATH; after everything is done you can check with a call to lilypond --version whether the correct version gets found on the command line.

If, for whatever reason, adjusting PATH is not possible or appropriate, or if you have multiple LilyPond versions installed in parallel, use the full path to the binary, for example

/home/me/lilypond-2.25.20/bin/lilypond music.ly

Invoking lilypond

The lilypond executable may be called as follows from the command line.

lilypond [option]… file

When invoked with a file name that has no extension, the .ly extension is tried first. To read input from stdin, use a dash (-) for file.

Note: On Windows prior to Windows 10 1903, LilyPond cannot handle Unicode file names.

When filename.ly is processed it produces filename.pdf as output by default. Several files can be specified; they are each processed independently.1

If filename.ly contains more than one \book block, the rest of the scores is output in numbered files, starting with filename-1.pdf. See Output file names how to change the output file name and the file name suffix.

Using LilyPond with standard shell features

Since LilyPond is a command-line application, features of the ‘shell’ used for calling LilyPond can also be put to good use.

For example,

lilypond *.ly

processes all LilyPond files in the current directory.

Redirecting the console output (e.g., to a file) may also be useful:

lilypond file.ly 1> stdout.txt
lilypond file.ly 2> stderr.txt
lilypond file.ly &> all.txt

The above commands divert ‘normal’ output, ‘errors’ only, or ‘everything’, respectively, to text files. Consult the documentation for your particular shell, Command (Windows), Terminal or Console applications (macOS) to check whether output redirection is supported or if the syntax is different.

The following example searches and processes all input files in the current directory and all directories below it recursively. The output files are located in the same directory that the command was run in, rather than in the same directories as the original input files.

find . -name '*.ly' -exec lilypond '{}' \;

This should also work for macOS users.

A Windows user would run

forfiles /s /M *.ly /c "cmd /c lilypond @file"

entering these commands in a command prompt usually found under Start > Accessories > Command Prompt, or by typing in the search window ‘command prompt’.

Alternatively, an explicit path to the top-level of your folder containing all the sub-folders that have input files in them can be stated using the /p option;

forfiles /s /p C:\Documents\MyScores /M *.ly /c "cmd /c lilypond @file"

If there are spaces in the path to the top-level folder, then the whole path needs to be inside double quotes;

forfiles /s /p "C:\Documents\My Scores" /M *.ly /c "cmd /c lilypond @file"

Basic command-line options for LilyPond

Please bear in mind that option arguments with spaces in it must be quoted. For example, to write LilyPond’s output to a directory called ‘foo bar’, a user must add -o "foo bar" (or --output="foo bar") to the command-line arguments of lilypond. Double quotes around such arguments work with virtually all command-line interpreters on both Windows and Unix-like operating systems (including macOS).

The following options are supported.

-d, --define-default=var[=val]

See Advanced command-line options for LilyPond.

-e, --evaluate=expr

Evaluate the Scheme expression expr before parsing any .ly files. Multiple -e options may be given, they are evaluated sequentially.

The expression is evaluated in the guile-user module, so if you want to use a definition like (define-public a 42) as expr, use

lilypond -e "(define-public a 42)"

on the command line, and include

#(use-modules (guile-user))

at the top of the .ly file.

-E, --eps

Generate EPS files.

This option is equivalent to specifying -dseparate-page-formats=eps -dtall-page-formats=eps.

-f, --format=format

The format of the (main) output file or files. Possible values for format are ps, pdf, png or svg.

Example: lilypond -fpng foo.ly

SVG internally uses a specific backend, and therefore cannot be obtained in the same run as other formats; using -fsvg or --svg is actually equivalent to using the -dbackend=svg option. See Advanced command-line options for LilyPond.

-h, --help

Show a summary of usage.

-H, --header=field

Dump a header field to file BASENAME.field.

As an example, let’s assume that you have an input file foo.ly containing

\header { title = "bar" }
\score { c1 }

The command

lilypond -H title foo.ly

then creates a plain text file foo.title containing the string bar.

-i, --init=file

Set init file to file (default: init.ly).

-I, --include=directory

Append directory to the search path for input files with relative paths. By default, only the current working directory gets searched.

Multiple -I options may be given. The search starts in the current working directory, and if the file to be included is not found the search continues in the directory given by the first -I option, then the directory in the second -I option, and so on.

Note: Using the tilde character (~) with the -I switch may produce unexpected results in some shells.

Windows users need to include a trailing slash for the directory’s path.

-j, --jail=user,group,jail,dir

[This option is only available if your operating system supports the chroot functionality. In particular, Windows doesn’t support it.]

Run lilypond in a chroot jail.

The --jail option can be used for security when LilyPond formatting is being provided via a web server, or whenever LilyPond executes commands sent by external sources (see Advanced command-line options for LilyPond). Because LilyPond provides the ability to run Guile programs, it is essential in such scenarios to run it in a sandboxed way so that the file being compiled does not wreak havoc on the system, for example with

% too dangerous to write correctly
#(s ystem "rm -rf /")
% malicious but not destructive
{ c4^$(ly:gulp-file "/etc/passwd") }

--jail is one way to achieve sandboxing. Another one is running LilyPond in a Docker container.

The --jail option works by changing the root of lilypond to jail just before starting the actual compilation process. The user and group are then changed to match those provided, and the current directory is changed to dir. This setup guarantees that it is not possible (at least in theory) to escape from the jail. Note that for --jail to work, lilypond must be run as root, which is usually accomplished in a safe way using sudo.

Setting up a jail can be a relatively complex matter, as we must be sure that LilyPond is able to find whatever it needs to compile the source inside the jail itself. A typical chroot jail comprises the following steps:

Setting up a separate filesystem

A separate filesystem should be created for LilyPond, so that it can be mounted with safe options such as noexec, nodev, and nosuid. In this way, it is impossible to run executables or to write directly to a device from LilyPond. If you do not want to create a separate partition, just create a file of reasonable size and use it to mount a loop device. A separate filesystem also guarantees that LilyPond cannot write more space than it is allowed.

Setting up a separate user

A separate user and group (say, lily/lily) with low privileges should be used to run LilyPond inside the jail. There should be a single directory writable by this user, which should be passed in dir.

Preparing the jail

LilyPond needs to read a number of files while running. All these files are to be copied into the jail, under the same path they appear in the real root filesystem. The entire content of the LilyPond installation (e.g., /usr/share/lilypond) should be copied.

If problems arise, the simplest way to trace them down is to run LilyPond using strace, which allows you to determine which files are missing.

Running LilyPond

In a jail mounted with noexec it is impossible to execute any external program. Therefore LilyPond must be run with a backend that does not require any such program. As we have already mentioned, it must be run with supernotation privileges (which, of course, it loses immediately), possibly using sudo. It is also good practice to limit the number of seconds of CPU time LilyPond can use (e.g., using ulimit -t), and, if your operating system supports it, the amount of memory that can be allocated. See LilyPond in chroot jail for more.

-l, --loglevel=level

Set the verbosity of the console output to level. Possible values are:

NONE

No output at all, not even error messages.

ERROR

Only error messages, no warnings or progress messages.

WARN

Warnings and error messages, no progress.

BASIC

Basic progress messages (success), warnings and errors.

PROGRESS

All progress messages, warnings and errors.

INFO

Progress messages, warnings, errors and further execution information. This is the default.

DEBUG

All possible messages, including verbose debug output.

-o, --output=file
-o, --output=folder

Set the default output file to file or, if a folder with that name exists, direct the output to folder, taking the file name from the input file. The appropriate suffix is added (e.g., .pdf for PDF) in both cases.

-O, --pspdfopt=key

Set the PS/PDF output optimization to key. Possible values are:

size

Generate a very small PS/EPS/PDF document. This is the default.

Using this value is equivalent to setting LilyPond’s Scheme command-line options -dmusic-font-encodings="#f" and -dgs-never-embed-fonts="#f".

TeX

Produce files that are optimized for inclusion in pdfTeX, LuaTeX, or XeTeX documents.

Using this value is equivalent to setting LilyPond’s Scheme command-line options -dmusic-font-encodings="#t" and -dgs-never-embed-fonts="#f".

TeX-GS

If you want to include more than one PDF generated by LilyPond in a TeX document, use this option and postprocess the PDF generated by TeX with Ghostscript.

Using this value is equivalent to setting LilyPond’s Scheme command-line options -dmusic-font-encodings="#t" and -dgs-never-embed-fonts="#t".

--ps

Generate PostScript. This option is equivalent to -fps.

--png

Generate pictures of each page, in PNG format. This option is equivalent to -fpng.

The resolution of the image may be set to N DPI with

-dresolution=N
--pdf

Generate PDF. This is the default, being equivalent to -fpdf.

-s, --silent

Show no progress, only error messages. This is equivalent to -lERROR.

--svg

Generate SVG files for each page. This option is equivalent to -fsvg.

-v, --version

Show version information.

-V, --verbose

Be verbose: show full paths of all files read, give timing information, etc. It is equivalent to -lDEBUG.

-w, --warranty

Show the warranty with which GNU LilyPond comes. (It comes with NO WARRANTY!)


Advanced command-line options for LilyPond

Option -d is the command-line interface to LilyPond’s Scheme function ly:set-option. This means that all options listed here can also be set within .ly files.

-d, --define-default=option-name[=value]
-d, --define-default=no-option-name

Set the equivalent internal Scheme symbol option-name to value. For example, the command-line option

-dbackend=svg

is equivalent to

#(ly:set-option 'backend 'svg)

in a LilyPond input file.

If value is not supplied, use #t as the value. The prefix no- may be added to option-name to switch ‘off’ an option, providing #f as the value. For example,

-dpoint-and-click="#f"

is the same as

-dno-point-and-click

[Note that the ‘#’ character introduces a comment in many shells. For this reason it is recommended to always quote expressions that contain it.]

The following table lists all supported option names together with its values. Within Scheme code, option values can be read using function ly:get-option.

anti-alias-factor num

Render at a higher resolution (using factor num, which must be a positive integer ≤ 8) and scale down the result to prevent ‘jaggies’ in PNG images. Default: 1.

aux-files bool

If bool is #t, create .tex, .texi, and .count files. This option is primarily for use by lilypond-book. Default: #f.

backend symbol

Use symbol as the backend for LilyPond output. Possible values are:

ps

This is the default setting. PostScript files include TTF, Type1, and OTF fonts. No ‘subsetting’ of these fonts is done. Be aware that using ‘oriental’ character sets like Japanese can lead to very large file sizes.

For PDF output, the ps backend is used, too; the resulting PS data is post-processed by Ghostscript’s ps2pdf script, which also does font subsetting by default.

cairo

This creates graphics output throught the Cairo library. This backend can output PS, EPS, PDF, PNG, and SVG.

svg

Scalable Vector Graphics. A single SVG file is created for every page of output. Music glyphs are encoded as vector graphics, but text fonts are not embedded in the SVG files. Any SVG viewer will therefore need the relevant text fonts to be available to it for proper rendering of both text and lyrics. It is recommended to not use font ‘lists’ or ‘aliases’ in case an SVG viewer is unable to handle them.

clip-systems bool

If bool is #t, extract music fragments out of a score. This requires that the clip-regions function has been defined within the \layout block. See Extracting fragments of music. No fragments are extracted though if used with the -dno-print-pages option. Default: #f.

compile-scheme-code bool

Use the Guile compiler to run Scheme code, instead of the evaluator. For more information, see Debugging Scheme code.

crop bool

If bool is #t, a second PDF file gets created (with extension .cropped.pdf), together with a rendered image of it (with extension .cropped.png). This output file fits all the music and headers, without margins, into a single, possibly tall page. If option --svg is set, an additional SVG file (with extension .cropped.svg) is produced instead. If option --eps or --ps is set, a cropped EPS file (with extension .cropped.eps) is produced instead of a cropped PDF. Default: #f.

As a feature of LilyPond, the dimensions of the cropped output file are always rounded up to integer (PostScript) big points; this might cause a little bit of whitespace at the right margin. To avoid that, set the line-width paper variable to an integer big point value like 450\bp.

Note that currently this option is not well suited for multi-system output since vertical space between systems gets removed.

datadir string

Prefix for data files. This is a read-only option; setting it has no effect.

debug-eval bool

If bool is #t, use the debugging Scheme evaluator, which prints backtraces with line numbers on errors. Default: #f, or #t when using --verbose.

debug-skylines bool

If bool is #t, debug skylines. Default: #f.

delete-intermediate-files bool

If bool is #t, delete the unusable, intermediate .ps files created during compilation. Default: #t.

embed-source-code bool

If bool is #t, embed the LilyPond source files inside the generated PDF document. Default: #f.

eps-box-padding num

Pad left edge of the output EPS bounding box by num millimeters. Default: #f (meaning no bounding box padding).

first string

Only show music with a length given by string at the beginning. This is equivalent to

showFirstLength = string

if inserted at the beginning of the input file. If both -dfirst and showFirstLength are set, the command-line option takes precedence. See Extracting fragments of music. Default: #f.

font-export-dir string

Set directory for exporting fonts as PostScript files to string. This is useful when you want to create a PDF without embedded fonts first and later embed the fonts with Ghostscript as shown below.

$ lilypond -dfont-export-dir=fontdir \
           -dgs-never-embed-fonts foo.ly
$ gs -q -dBATCH -dNOPAUSE -sDEVICE=pdfwrite \
     -sOutputFile=foo.embedded.pdf foo.pdf fontdir/*.font.ps

Note: Unlike font-ps-resdir, this method cannot embed CID fonts with Ghostscript 9.26 and later.

Note: Similar to font-ps-resdir, this option skips TrueType fonts because embedding TrueType fonts might cause garbled characters. To avoid garbling characters, use gs-never-embed-fonts, as this embeds TrueType fonts despite its name.

Default: #f (meaning no export directory).

font-ps-resdir string

Set directory (as string) to build a subset of the PostScript resource directory to be used for embedding fonts later. This is useful when you want to create a PDF without embedded fonts first and later embed the fonts with Ghostscript as shown below.

$ lilypond -dfont-ps-resdir=resdir \
           -dgs-never-embed-fonts foo.ly
$ gs -q -dBATCH -dNOPAUSE -sDEVICE=pdfwrite \
     -I resdir -I resdir/Font \
     -sOutputFile=foo.embedded.pdf foo.pdf

Note: It is better not to specify a directory that contains the name Resource because it has a special meaning when specified with the -I option for Ghostscript.

Note: Unlike font-export-dir, this method can embed CID fonts with Ghostscript 9.26 and later.

Note: Similar to font-export-dir, this option skips TrueType fonts because embedding TrueType fonts might cause garbled characters. To avoid garbling characters, use gs-never-embed-fonts, as this embeds TrueType fonts despite its name.

Default: #f (meaning no subset directory).

gs-load-fonts bool

If bool is #t, load fonts via Ghostscript. This option makes LilyPond’s output files contain only references to all fonts, which must be resolved to real fonts in a post-processing step by Ghostscript. Default: #f.

gs-load-lily-fonts bool

If bool is #t, load LilyPond fonts via Ghostscript. This option makes LilyPond’s output files contain only references to its music fonts, which must be resolved to real fonts in a post-processing step by Ghostscript. All other fonts are still output as usual. Default: #f.

gs-never-embed-fonts bool

If bool is #t, make Ghostscript embed only TrueType fonts and no other font format. Default: #f.

help bool

If bool is #t, show a help screen and exit. Default: #f.

include-book-title-preview bool

If bool is #t, include book titles in preview images. Default: #t.

include-eps-fonts bool

If bool is #t, include fonts in separate-system EPS files. Default: #t.

include-settings string

Include file string for global settings, which is included before the score is processed. This option can be passed multiple times to include several files. Default: not set (meaning no global settings file).

job-count num

Process in parallel, using num jobs (num being a positive integer). Default: #f (meaning no parallel processing).

last string

Only show music with a length given by string at the end. This is equivalent to

showLastLength = string

if inserted at the beginning of the input file. If both -dlast and showLastLength are set, the command-line option takes precedence. See Extracting fragments of music. Default: #f.

log-file string

Redirect output to the log file string.log. Default: #f (meaning no log file).

max-markup-depth num

Set maximum depth for the markup tree to value num (being a non-negative integer). If a markup has more levels, assume it will not terminate on its own, print a warning, and return a null markup instead. Default: 1024.

midi-extension string

Set the default file extension for MIDI output files to .string. Default: "midi".

music-strings-to-paths bool

If bool is #t, convert text strings to paths when glyphs belong to a music font. Default: #f.

paper-size string

Set default paper size to string. Default: "a4".

pixmap-format string

Set Ghostscript’s output format for pixel images to string. Default: "png16m".

png-width width
png-height height

For PNG output, set the width and height (in pixels) of the created image file. If one of the options is missing, the other dimension is computed according to the EPS bounding box, retaining the aspect ratio. Both width and height must be non-negative integers.

In addition to --png, either --eps, -dcrop, or -dpreview should be used to get proper image scaling without clipping.

Option -dresolution is ignored.

Note that there is a bug in Ghostscript versions up to 9.52 for these two options: It produces empty PNG images if the height is larger than the width.

Default: 0 for both width and height (meaning both dimensions are derived from the EPS bounding box).

point-and-click value

If value is #t, add ‘point & click’ links to PDF and SVG output.

There are more possible option values; see Point and click. Default: #t.

preview bool

If bool is #t, create preview images in addition to normal output. Default: #f.

For input file name file and output format fmt, it generates an output file having the name file.preview.fmt, containing the titles and the first system of music. If \book or \bookpart blocks are used, the titles of \book, \bookpart or \score will appear in the output, including the first system of every \score block if the \paper variable print-all-headers is set to #t.

To suppress the usual output, use the -dprint-pages or -dno-print-pages options according to your requirements.

print-pages bool

If bool is #t, generate full pages. Default: #t.

Option -dno-print-pages is useful in combination with -dpreview or -dcrop.

protected-scheme-parsing bool

If bool is #t, continue when errors in inline Scheme code are caught in the parser. If set to #f, halt on errors and print a stack trace. Default: #t.

read-file-list bool

If bool is #t, handle all file arguments on the command line as lists of LilyPond input files to be processed, with one input file per line in these lists. Default: #f.

relative-includes bool

When processing an \include command, look for the included file relative to the current file if bool is #t. If set to #f, look for the file relative to the root file. Default: #t.

resolution num

Set resolution for generating PNG pixmaps to num dpi (which must be a positive number). Default: 101.

separate-log-files bool

For input files file1.ly, file2.ly, …, output log data to files file1.log, file2.log, …, if bool is #t. Default: #f.

separate-page-formats string

Comma-separated list of formats (svg, pdf, png, or eps) to use for the separate page images in lilypond-book. See Other programs. Default: #f.

show-available-fonts bool

If bool is #t, list available font names as delivered by the fontconfig library. Appended to this list LilyPond displays the configuration settings of fontconfig itself. Default: #f.

staff-size num

Set global staff size to num points (which must be a positive number). This is equivalent to

#(set-global-staff-size num)

if inserted at the beginning of the input file. Default: 20pt.

strip-output-dir bool

If bool is #t, don’t use the directory part from input file paths while constructing output file names. Default: #t.

strokeadjust bool

If bool is #t, force PostScript stroke adjustment. This option is mostly relevant when a PDF is generated from PostScript output (stroke adjustment is usually enabled automatically for low-resolution bitmap devices). Without this option, PDF previewers tend to produce widely inconsistent stem widths at resolutions typical for screen display. However, the option does not noticeably affect print quality and causes large file size increases in PDF files. Default: #f.

tall-page-formats string

Comma-separated list of formats (svg, pdf, png, or eps) to use for the ‘tall page’ image in lilypond-book. See Other programs. Default: #f.

use-paper-size-for-page bool

If bool is #t, each page is set to the paper size, possibly cropping parts that extend beyond the paper. Setting it #f resizes the page to contain the content as necessary. Default: #t.

verbose bool

Verbosity level. This is a read-only option; setting it has no effect.

warning-as-error bool

If bool is #t, change all warning and ‘programming error’ messages into errors. Default: #f.


Environment variables

lilypond recognizes the following environment variables:

LILYPOND_DATADIR

This specifies a directory where locale messages and data files are looked up by default, overriding locations defined either at compile-time or computed dynamically at run-time (see Relocation). The directory should contain subdirectories called ly, ps, tex, etc.

LILYPOND_LOCALEDIR

Specify the directory where locale-specific files are located. This overrides the value derived from LILYPOND_DATADIR.

LILYPOND_RELOCDIR

Specify the directory where relocation files are located. This overrides the value derived from the location of the lilypond binary.

LANG

The language for LilyPond data sent to stdout and stderr, for example progress reports, warning messages, or debug output. Example: LANG=de.

LILYPOND_LOGLEVEL

The default loglevel. If LilyPond is called without an explicit loglevel (i.e., no --loglevel command-line option), this value is used.

LILYPOND_GC_YIELD

A variable, as a percentage, that tunes memory management behavior. A higher value means the program uses more memory, a smaller value means more CPU time is used. The default value is 70.

TMPDIR

This specifies the temporary directory in GNU/Linux and macOS. Default is /tmp. It is the directory where intermediate files (such as PostScript files) are saved during compilation. Overriding this variable might be useful, for example, if the user running lilypond does not have write access to the default temporary directory. Example: TMPDIR=~/foo.


Relocation

Most programs in the Unix world use default directories for its data that are determined at configure time before compilation. LilyPond is no exception; for example, a typical installation puts the lilypond binary into /usr/bin and all files specific to LilyPond into subdirectories of /usr/share/lilypond/2.25.20/ (assuming that the current version is 2.25.20).

While this approach works fine for manual compilation and platforms that come with standardized package managers, it can cause issues where such managers are not common or not used by default. Typical examples of such platforms are Windows and macOS, where users expect that application bundles can be installed anywhere.

The common solution to this problem is relocation support: Instead of using hard-coded paths to data files, locations of the necessary support files are computed at run time relative to the executed binary.


Relocation files

There’s actually a second mechanism for run-time configuration: LilyPond heavily relies on external programs and libraries, in particular the ‘FontConfig’ and ‘Guile’ libraries to find system fonts and handle Scheme files, respectively, and the gs program to convert PS data to PDF files. All of them must be configured also to locate its relevant data files. To do that, the lilypond program parses all files in a directory called relocate (if it exists; see below where this directory is searched for) to manipulate environment variables, which in turn control those external libraries and programs. The format of such relocation files is simple; each line has the syntax

command key=value

and empty lines get ignored.

The command directive is one of the following.

set

Uncondionally set environment variable key to value. This overrides a previously set value.

set?

Set environment variable key to value only if key isn’t defined yet. In other words, it doesn’t override a previously set value.

setdir

If value is a directory, unconditionally set environent variable key to value. Otherwise, emit a warning.

setfile

If value is a file, unconditionally set environent variable key to value. Otherwise, emit a warning.

prependdir

Prepend directory value to the list of directories in environment variable key. If key doesn’t exist it gets created.

Environment variables (marked with a leading dollar sign) are allowed in value and get expanded before the directive is executed.

Here are two examples of relocation file entries.

set? FONTCONFIG_FILE=$INSTALLER_PREFIX/etc/fonts/fonts.conf
prependdir GUILE_LOAD_PATH=$INSTALLER_PREFIX/share/guile/1.8

Multiple lines setting the same environment variable should be avoided in relocation files since the parsing order of files in the relocate directory is arbitrary.


Relocation algorithm

LilyPond uses the following algorithm to find its data files.

  1. Compute the directory where the currently executed lilypond binary is located. Let’s call this bindir. Set (internal) environment variable INSTALLER_PREFIX to bindir/.. (i.e., the parent directory of bindir).
  2. Check environment variable LILYPOND_DATADIR. If it is set, use its value for LilyPond’s data directory, datadir. Otherwise use either $INSTALLER_PREFIX/share/lilypond/version (with version being the current LilyPond version) or $INSTALLER_PREFIX/share/lilypond/current.
  3. Check environment variable LILYPOND_LOCALEDIR. If it is set, use its value for LilyPond’s locale data directory, localedir. Otherwise use $INSTALLER_PREFIX/share/locale.
  4. Check environment variable LILYPOND_RELOCDIR. If it is set, use its value for the directory of LilyPond’s relocation files, relocdir. Otherwise use $INSTALLER_PREFIX/etc/relocate.
  5. If datadir doesn’t exist, use a compile-time value instead. Ditto for localedir (but not for relocdir, since it doesn’t make sense to have that).
  6. If relocdir exists, process all files in this directory (see Relocation files).

LilyPond in chroot jail

Setting up the server to run LilyPond in a chroot jail is a complicated task. The steps are listed below. Examples in the steps are from Ubuntu GNU/Linux, and may require the use of sudo as appropriate.

  • Install the necessary packages: LilyPond, Ghostscript, and ImageMagick.
  • Create a new user by the name of lily:
    adduser lily
    

    This will create a new group for the lily user as well, and a home folder, /home/lily

  • In the home folder of the lily user create a file to use as a separate filesystem:
    dd if=/dev/zero of=/home/lily/loopfile bs=1k count= 200000
    

    This example creates a 200MB file for use as the jail filesystem.

  • Create a loop device, make a file system and mount it, then create a folder that can be written by the lily user:
    mkdir /mnt/lilyloop
    losetup /dev/loop0 /home/lily/loopfile
    mkfs -t ext3 /dev/loop0 200000
    mount -t ext3 /dev/loop0 /mnt/lilyloop
    mkdir /mnt/lilyloop/lilyhome
    chown lily /mnt/lilyloop/lilyhome
    
  • In the configuration of the servers, the JAIL will be /mnt/lilyloop and the DIR will be /lilyhome.
  • Create a big directory tree in the jail by copying the necessary files, as shown in the sample script below.

    You can use sed to create the necessary copy commands for a given executable:

    for i in "/usr/local/lilypond/usr/bin/lilypond" "/bin/sh" "/usr/bin/;  \
      do ldd $i | sed 's/.*=> \/\(.*\/\)\([^(]*\).*/mkdir -p \1 \&\&  \
        cp -L \/\1\2 \1\2/' | sed 's/\t\/\(.*\/\)\(.*\) (.*)$/mkdir -p  \
          \1 \&\& cp -L \/\1\2 \1\2/' | sed '/.*=>.*/d'; done
    

Example script for 32-bit Ubuntu 8.04

#!/bin/sh
## defaults set here

username=lily
home=/home
loopdevice=/dev/loop0
jaildir=/mnt/lilyloop
# the prefix (without the leading slash!)
lilyprefix=usr/local
# the directory where lilypond is installed on the system
lilydir=/$lilyprefix/lilypond/

userhome=$home/$username
loopfile=$userhome/loopfile
adduser $username
dd if=/dev/zero of=$loopfile bs=1k count=200000
mkdir $jaildir
losetup $loopdevice $loopfile
mkfs -t ext3 $loopdevice 200000
mount -t ext3 $loopdevice $jaildir
mkdir $jaildir/lilyhome
chown $username $jaildir/lilyhome
cd $jaildir

mkdir -p bin usr/bin usr/share usr/lib usr/share/fonts $lilyprefix tmp
chmod a+w tmp

cp -r -L $lilydir $lilyprefix
cp -L /bin/sh /bin/rm bin
cp -L /usr/bin/convert /usr/bin/gs usr/bin
cp -L /usr/share/fonts/truetype usr/share/fonts

# Now the library copying magic
for i in "$lilydir/usr/bin/lilypond" "$lilydir/usr/bin/guile" "/bin/sh"  \
  "/bin/rm" "/usr/bin/gs" "/usr/bin/convert"; do ldd $i | sed 's/.*=>  \
    \/\(.*\/\)\([^(]*\).*/mkdir -p \1 \&\& cp -L \/\1\2 \1\2/' | sed  \
      's/\t\/\(.*\/\)\(.*\) (.*)$/mkdir -p \1 \&\& cp -L \/\1\2 \1\2/'  \
        | sed '/.*=>.*/d'; done | sh -s

# The shared files for Ghostscript...
      cp -L -r /usr/share/ghostscript usr/share
# The shared files for ImageMagick
      cp -L -r /usr/lib/ImageMagick* usr/lib

### Now, assuming that you have test.ly in /mnt/lilyloop/lilyhome,
### you should be able to run:
### Note that /$lilyprefix/bin/lilypond is a script, which sets the
### LD_LIBRARY_PATH - this is crucial
      /$lilyprefix/bin/lilypond -jlily,lily,/mnt/lilyloop,/lilyhome test.ly

1.3 Error messages

Different error messages can appear while compiling a file:

Warning

Something looks suspect. If you are requesting something out of the ordinary then you will understand the message, and can ignore it. However, warnings usually indicate that something is wrong with the input file.

Error

Something is definitely wrong. The current processing step (parsing, interpreting, or formatting) will be finished, but the next step will be skipped.

Fatal error

Something is definitely wrong, and LilyPond cannot continue. This happens rarely. The most usual cause is misinstalled fonts.

Scheme error

Errors that occur while executing Scheme code are caught by the Scheme interpreter. If running with the verbose option (-V or --verbose) then a call trace of the offending function call is printed.

Programming error

There was some internal inconsistency. These error messages are intended to help the programmers and debuggers. Usually, they can be ignored. Sometimes, they come in such big quantities that they obscure other output.

Aborted (core dumped)

This signals a serious programming error that caused the program to crash. Such errors are considered critical. If you stumble on one, send a bug-report.

If warnings and errors can be linked to some part of the input file, then error messages have the following form

filename:lineno:columnno: message
offending input line

A line-break is inserted in the offending line to indicate the column where the error was found. For example,

test.ly:2:19: error: not a duration: 5
  { c'4 e'
           5 g' }

These locations are LilyPond’s best guess about where the warning or error occurred, but (by their very nature) warnings and errors occur when something unexpected happens. If you can’t see an error in the indicated line of your input file, try checking one or two lines above the indicated position.

Please note that diagnostics can be triggered at any point during the many stages of processing. For example if there are parts of the input that are processed multiple times (i.e., in midi and layout output), or if the same music variable is used in multiple contexts the same message may appear several times. Diagnostics produced at a ‘late’ stage (i.e., bar checks) might also be issued multiple times.

See Common errors for more information about errors.


1.4 Common errors

The error conditions described below occur often, yet the cause is not obvious or easily found. Once seen and understood, they are easily handled.


Music runs off the page

Music running off the page over the right margin or appearing unduly compressed is almost always due to entering an incorrect duration on a note, causing the final note in a measure to extend over the bar line. It is not invalid if the final note in a measure does not end on the automatically entered bar line, as the note is simply assumed to carry over into the next measure. But if a long sequence of such carry-over measures occurs the music can appear compressed or may flow off the page because automatic line breaks can be inserted only at the end of complete measures, i.e., where all notes end before or at the end of the measure.

Note: An incorrect duration can cause line breaks to be inhibited, leading to a line of highly compressed music or music which flows off the page.

The incorrect duration can be found easily if bar checks are used, see Bar and bar number checks.

If you actually intend to have a series of such carry-over measures you will need to insert an invisible bar line where you want the line to break. For details, see Bar lines.


An extra staff appears

If contexts are not created explicitly with \new or \context, they will be silently created as soon as a command is encountered which cannot be applied to an existing context. In simple scores the automatic creation of contexts is useful, and most of the examples in the LilyPond manuals take advantage of this simplification. But occasionally the silent creation of contexts can give rise to unexpected new staves or scores. For example, it might be expected that the following code would cause all note heads within the following staff to be colored red, but in fact it results in two staves with the note heads remaining the default black in the lower staff.

\override Staff.NoteHead.color = #red
\new Staff { a' }

[image of music]

This is because a Staff context does not exist when the override is processed, so one is implicitly created and the override is applied to it, but then the \new Staff command creates another, separate, staff into which the notes are placed. The correct code to color all note heads red is

\new Staff {
  \override Staff.NoteHead.color = #red
  a'
}

[image of music]


Error message Unbound variable %

This error message will appear at the bottom of the console output or log file together with a “Guile signalled an error …” message every time a Scheme routine is called which (invalidly) contains a LilyPond rather than a Scheme comment.

LilyPond comments begin with a percent sign, (%), and must not be used within Scheme routines. Scheme comments begin with a semi-colon, (;).


Error message FT_Get_Glyph_Name

This error messages appears in the console output or log file if an input file contains a non-ASCII character and was not saved in UTF-8 encoding. For details, see Text encoding.


Warning staff affinities should only decrease

This warning can appear if there are no staves in the printed output, for example if there are just a ChordName context and a Lyrics context as in a lead sheet. The warning messages can be avoided by making one of the contexts behave as a staff by inserting

\override VerticalAxisGroup.staff-affinity = ##f

at its start. For details, see “Spacing of non-staff lines” in Flexible vertical spacing within systems.


Error message unexpected \new

A \score block must contain a single music expression. If instead it contains several \new Staff, \new StaffGroup or similar contexts introduced with \new without them being enclosed in either curly brackets, { … }, or double angle brackets, << … >>, like this:

\score {
  % Invalid! Generates error: syntax error, unexpected \new
  \new Staff { … }
  \new Staff { … }
}

the error message will be produced.

To avoid the error, enclose all the \new statements in curly or double angle brackets.

Using curly brackets will introduce the \new statements sequentially:

\score {
  {
    \new Staff { a' a' a' a' }
    \new Staff { g' g' g' g' }
  }
}

[image of music]

but more likely you should be using double angle brackets so the new staves are introduced in parallel, i.e., simultaneously:

\score {
  <<
    \new Staff { a' a' a' a' }
    \new Staff { g' g' g' g' }
  >>
}

[image of music]


Warning this voice needs a \voiceXx or \shiftXx setting

If notes from two different voices with stems in the same direction occur at the same musical moment, but the voices have no voice-specific shifts specified, the warning message ‘warning: this voice needs a \voiceXx or \shiftXx setting’ will appear when compiling the LilyPond file. This warning will appear even when the notes have no visible stems, e.g., whole notes, if the stems for shorter notes at the same pitch would be in the same direction.

Remember that the stem direction depends on the position of the note on the staff unless the stem direction is specified, for example by using \voiceOne, etc. In this case the warning will appear only when the stems happen to be in the same direction, i.e., when the notes are in the same half of the staff.

By placing the notes in voices with stem directions and shifts specified, for example by using \voiceOne, etc., these warnings may be avoided.

Notes in higher numbered voices, \voiceThree, etc., are automatically shifted to avoid clashing note columns. This causes a visible shift for notes with stems, but whole notes are not visibly shifted unless an actual clash of the note heads occurs, or when the voices cross over from their natural order (when \voiceThree is higher than \voiceOne, etc.).

See also

Explicitly instantiating voices, Real music example, Single-staff polyphony, Collision resolution.


2 Updating files with convert-ly

As LilyPond is improved, the syntax (input language) of some commands and functions can change. This usually results in unexpected errors, warnings, or even wrong output when input files, previously created for older versions of LilyPond, are then used with later versions.

To help with this, the convert-ly command can be used to upgrade older input files to the newer syntax.


2.1 Why does the syntax change?

Syntax changes are often made to make the LilyPond input code simpler for both reading and writing, but occasionally changes are made to accommodate new features or enhancements to existing functions.

Here is a real example to illustrate this.

All \paper and \layout property names are supposed to be written in the form first-second-third. However, in LilyPond version 2.11.60, it was noticed that the printallheaders property did not follow this convention. Should this property be left alone (confusing new users with an inconsistent format)? Or should it be changed (annoying old users with existing LilyPond input files)? The decision was eventually made to change the name of the property to print-all-headers, and by using the convert-ly command old users had a way to automatically update their existing input files.

Unfortunately, the convert-ly command is not capable to manage all syntax changes. For example, accents and non-English characters were entered using standard LaTeX notation in versions of LilyPond before 2.6; words like ‘Noël’ (which is ‘Christmas’ in French) had to be entered as No\"el. Starting with LilyPond 2.6, the special letter ‘ë’ must be entered directly as a UTF-8 character. Because convert-ly cannot convert LaTeX special characters into UTF-8 characters, older LilyPond input files have to be edited manually to take care of that.

The conversion rules of the convert-ly command work by using text pattern matching and replacement (rather than ‘understanding’ the context of what it is changing within a given input file). This has several consequences:

  • The reliability of the conversion depends on the quality of each applied rule set and on the complexity of the respective change. Sometimes conversions may require additional, manual fixes, so the original input files should be kept for comparison just in case.
  • Only conversions to newer syntax changes are possible: there are no rule sets to go back to older versions of LilyPond. As a consequence, input files should only be upgraded when older versions of LilyPond are no longer being maintained. Again, the original data should be kept just in case, perhaps by using version control systems like Git to help maintain multiple versions of your input files.
  • LilyPond is quite robust when processing ‘creatively’ placed or omitted whitespace, but the rules used by convert-ly often make some stylistic assumptions. For painless upgrades it is therefore advised to follow the input style as used in the LilyPond manuals, particularly as the examples in the manuals themselves are all upgraded using the convert-ly command.

2.2 Command-line preliminaries

This and the following sections only cover the command-line usage of convert-ly. GUI applications like Frescobaldi have their own interfaces to convert-ly.

By ‘command line’, we mean the command line in the operating system. Windows users might be more familiar with the terms ‘DOS shell’ or ‘command shell’. macOS users might be more familiar with the terms ‘terminal’ or ‘console’.

Describing how to use this part of an operating system is outside the scope of this manual; please consult other documentation on this topic if you are unfamiliar with the command line.

See The PATH environment variable how to set up the operating system so that convert-ly can be used on the command line without specifying a path.

Additional setup for Windows

[Non-Windows users can skip this section; Windows users who have a Python interpreter already installed (version 3.8 or higher) can skip this section, too.]

convert-ly is actually a Python script called convert-ly.py. In the LilyPond binary bundle for Windows it is located in the same directory as the lilypond.exe binary and a Python interpreter, python.exe. Assuming that you have unpacked version 2.25.20 within a directory C:\Users\me and PATH is correctly set up, it would be still necessary to say

python C:\Users\me\lilypond-2.25.20\bin\convert-ly.py myfile.ly

which is tedious to type.

Three steps are necessary to allow the omission of both the interpreter (python.exe) and the .py extension.2

  1. On the command line, say
    assoc .py=PythonScript
    

    to associate the extension .py with the file type ‘PythonScript’.

  2. As the next command, say
    ftype PythonScript=C:\Users\me\lilypond-2.25.20\bin\python.exe %1 %*
    

    to make files of type ‘PythonScript’ be handled by LilyPond’s python.exe. You have to adjust the path to the actual location, and don’t omit the trailing ‘%1 %*’!

  3. Modify the PATHEXT environment variable and add .py to already present entries. Do this in exactly the same way as you have already done with PATH.

Now close the command line and open it again, then test whether convert-ly --version works.


2.3 Invoking convert-ly

The convert-ly command uses the \version number in the input file to detect older versions. In most cases it is sufficient just to run

convert-ly -e myfile.ly

in the directory containing the input file; this upgrades myfile.ly in-place and preserves the original file by renaming it to myfile.ly~. The \version number in the upgraded input file, along with any required syntax updates, is also changed.

When run, the convert-ly command outputs the version numbers of which conversions have been made to. If no version numbers are listed in the output for the file, it is already up to date and using the latest LilyPond syntax.

Note: For each new version of LilyPond, a new convert-ly command is created. However, not every version of LilyPond needs syntax changes for its input files from the version before. This means that the convert-ly command only converts input files up to the latest syntax change it has and this, in turn, may mean that the \version number left in the upgraded input file is sometimes lower than the version of the convert-ly command itself.

To convert all input files in a single directory, use

convert-ly -e *.ly

as a command. To handle all input files that reside in different subdirectories, try

find . -name '*.ly' -exec convert-ly -e '{}' \;

to recursively search and convert them in the current directory and all directories below it. The converted files will be located in the same directory along with their renamed originals.

On Windows, execute

forfiles /s /M *.ly /c "cmd /c convert-ly -e @file"

instead. The forfiles command also accepts an explicit path to the top level of your folder containing all the sub-folders that have input files in them by using the /p option.

forfiles /s /p C:\Documents\MyScores /M *.ly /c "cmd /c convert-ly -e @file"

If there are spaces in the path to the top-level folder, the whole path needs to be inside double quotes, for example

forfiles /s /p "C:\Documents\My Scores" /M *.ly /c "cmd /c convert-ly -e @file"

2.4 Command-line options for convert-ly

The program is invoked as follows:

convert-ly [option]… filename

By default, convert-ly writes its data to standard output.

The following options can be given:

--version

Show version number and exit.

-h, --help

Show usage help and exit.

-d, --diff-version-update

Increase the \version string only if the file has actually been changed. In that case, the version header will correspond to the version after the last actual change. An unstable version number will be rounded up to the next stable version number unless that would exceed the target version number. Without this option, the version will instead reflect the last attempted conversion.

-e, --edit

Apply the conversions directly to the input file, modifying it in-place. If the original file is called myfile.ly, a backup is retained under the name myfile.ly~, i.e., a tilde character gets appended. This backup file may be a hidden file on some operating systems.

If you want the converted output to be stored under a different name, redirect the standard output to a file.

convert-ly myfile.ly > mynewfile.ly

See also option --backup-numbered.

-b, --backup-numbered

When used with the ‘-e’ option, number the backup files so that no previous version is overwritten. Assuming the input file is called myfile.ly, try to store the backup in myfile.ly.~1~. If it exists, try myfile.ly.~2~ instead, etc. The backup files may be hidden on some operating systems.

-f, --from=from-patchlevel

Set the version to convert from. If this is not set, convert-ly will guess it on the basis of the (first) \version string in the file. Example: --from=2.10.25

-h, --help

Print usage help.

-l loglevel, --loglevel=loglevel

Set the output verbosity to loglevel. Possible values, in upper case, are PROGRESS (the default), NONE, WARN, ERROR, and DEBUG.

-n, --no-version

Normally, convert-ly adds a \version indicator to the output. Specifying this option suppresses this.

-c, --current-version

By default, convert-ly updates the \version string to the lowest necessary version. If this option is given, the current LilyPond version (2.25.20) is used instead.

-s, --show-rules

Show conversion descriptions and exit. The amount of information can be adjusted with options --from and --to.

-t, --to=to-patchlevel

Explicitly set which \version to convert to, otherwise the default is the most current value. It must be higher than the starting version.

convert-ly --to=2.14.1 myfile.ly
-v, --verbose

Display rule descriptions during conversion.

-w, --warranty

Show warranty and copyright and exit.

To upgrade LilyPond fragments in Texinfo files, use

convert-ly --from=… --to=… --no-version *.itely

To see the changes in the LilyPond syntax between two versions, use

convert-ly --from=… --to=… -s

2.5 Problems running convert-ly

If an input (or output) file name contains spaces it is necessary to surround the file name with double quotes.

convert-ly "D:/My Scores/Ode.ly" > "D:/My Scores/new Ode.ly"

If the invocation of convert-ly -e *.ly fails because the expanded command line becomes too long, the convert-ly command may be placed in a loop instead. This example for UNIX upgrades all .ly files in the current directory

for f in *.ly; do convert-ly -e $f; done

For Windows, the corresponding command is

for %x in (*.ly) do convert-ly.py -e "%x"

in the command prompt window.

As discussed earlier, not all language changes are handled. In particular, automatically updating Scheme and LilyPond Scheme interfaces is quite unlikely; be prepared to tweak Scheme code manually.


2.6 Manual conversions

In theory, a program like convert-ly could handle any syntax change. After all, a computer program interprets the old version and the new version, so another computer program can translate one file into another.3

However, the LilyPond project has limited resources: not all conversions are performed automatically. If convert-ly is not able to handle a syntax change, it emits a warnings like the following (from the 2.23.12 conversion rule).

Not smart enough to convert music following \fine.

Warning: \fine no longer enforces the end of the music.
If your piece has music following \fine that you want to
exclude when it is unfolded, use \volta to exclude it.
Please refer to the manual for details, and update manually.

2.7 Writing code to support multiple versions

In some cases, especially when writing library code it is desirable to support multiple LilyPond versions across breaking syntax changes. To do this alternative portions of code can be wrapped into conditional expressions depending on the currently executed LilyPond version. The Scheme function ly:version? expects a comparison operator op and a reference version ver passed as a list of integers with up to three elements. Missing elements are ignored so '(2 20) is equivalent to any version of the 2.20 line of versions. Constructs like the following are possible:

#(cond
  ((ly:version? > '(2 20))
   (ly:message "This is code to run for LilyPond after 2.20"))
  ((ly:version? = '(2 19 57))
   (ly:message "This will only be executed with LilyPond 2.19.57"))
  (else (ly:message "This will be executed in any other version")))

Usually this will be integrated in library functions to allow alternative syntax to be used, but it is also possible to use the comparison directly within the music like in the following example:

{
  c' d' e' f'
  #(if (ly:version? = '(2 21))
       #{ \override NoteHead.color = #red #}
       #{ \override NoteHead.color = #blue #})
  g' a' b' c''
}

Note: This function has been introduced in LilyPond 2.21.80, so it is not possible to compare with versions earlier than that.


3 Running lilypond-book

If you want to add pictures of music to a document, you can simply do it the way you would do with other types of pictures. The pictures are created separately (in PostScript, PDF, or PNG format), and those are included into a LaTeX or HTML document.

lilypond-book provides a way to automate this process: This program extracts snippets of music from your document, runs lilypond on them, and outputs the document with pictures substituted for the music. The line width and font size definitions for the music are adjusted to match the layout of your document.

This is a separate program from lilypond itself, and is run on the command line; for more information, see Command-line usage.

This procedure may be applied to LaTeX, HTML, Texinfo or DocBook documents.


3.1 An example of a musicological document

Some texts contain music examples. These texts are musicological treatises, songbooks, or manuals like this. Such texts can be made by hand, simply by importing a PostScript or PDF figure into the word processor. However, there is an automated procedure to reduce the amount of work involved in HTML, LaTeX, Texinfo and DocBook documents.

A script called lilypond-book will extract the music fragments, format them, and put back the resulting notation. Here we show a small example for use with LaTeX. The example also contains explanatory text, so we will not comment on it further.

Input

\documentclass[a4paper]{article}

\begin{document}

Documents for \verb+lilypond-book+ may freely mix music and text.
For example,

\begin{lilypond}
\relative {
  c'2 e2 \tuplet 3/2 { f8 a b } a2 e4
}
\end{lilypond}

Options are put in brackets.

\begin{lilypond}[fragment,quote,staffsize=26,verbatim]
  c'4 f16
\end{lilypond}

Larger examples can be put into a separate file, and introduced with
\verb+\lilypondfile+.

\lilypondfile[quote,noindent]{screech-and-boink.ly}

(If needed, replace @file{screech-and-boink.ly} by any @file{.ly} file
you put in the same directory as this file.)

\end{document}

Processing

Save the code above to a file called lilybook.lytex, then in a terminal run

lilypond-book --output=out --pdf lilybook.lytex
lilypond-book (GNU LilyPond) 2.25.20 
Reading lilybook.lytex...
…lots of stuff deleted…
Compiling lilybook.tex...
cd out
pdflatex lilybook
…lots of stuff deleted…
xpdf lilybook
(replace xpdf by your favorite PDF viewer)

Running lilypond-book and latex creates a lot of temporary files, which would clutter up the working directory. To remedy this, use the --output=dir option. It will create the files in a separate subdirectory dir.

Finally the result of the LaTeX example shown above.4 This finishes the tutorial section.

Output

Documents for lilypond-book may freely mix music and text. Using Texinfo syntax, this example

@lilypond
\relative {
  c'2 e2 \tuplet 3/2 { f8 a b } a2 e4
}
@end lilypond

produces

[image of music]

Options to control the appearance of snippets can be added, too. Using LaTeX syntax, this example

\begin{lilypond}[fragment, quote, staffsize=26]
c'4 f16
\end{lilypond}

produces

[image of music]

Larger music snippets can be put into separate files. Using HTML syntax, this example

<lilypondfile quote noindent>
  snippets/screech-and-boink.ly
</lilypondfile>

produces

[image of music]

If a tagline is required, either default or custom, the entire snippet must be enclosed in a \book { } construct.

\book {
  \header { title = "A scale in LilyPond" }

  \relative { c' d e f g a b c }
}

[image of music]


3.2 Integrating music and text

Here we explain in detail how to integrate LilyPond with various output formats.


3.2.1 LaTeX

LaTeX is the de-facto standard for publishing layouts in the exact sciences. It is built on top of the TeX typesetting engine, providing the best typography available anywhere.

See The Not So Short Introduction to LaTeX for an overview on how to use LaTeX.

lilypond-book provides the following commands and environments to include music in LaTeX files:

  • the \lilypond{…} command to directly enter short LilyPond code,
  • the \begin{lilypond}…\end{lilypond} environment to directly enter longer LilyPond code,
  • the \lilypondfile{…} command to insert a LilyPond file,
  • the \musicxmlfile{…} command to insert a MusicXML file, which gets processed by musicxml2ly and lilypond.

In the input file, music is specified with any of the following commands:

\begin{lilypond}[options,go,here]
  YOUR LILYPOND CODE
\end{lilypond}

\lilypond[options,go,here]{ YOUR LILYPOND CODE }

\lilypondfile[options,go,here]{filename}

\musicxmlfile[options,go,here]{filename}

Additionally, \lilypondversion displays the current version of LilyPond. Running lilypond-book yields a file that can be further processed with LaTeX.

We show some examples here. The lilypond environment

\begin{lilypond}[quote,fragment,staffsize=26]
  c'4 d' e' f' g'2 g'
\end{lilypond}

produces

[image of music]

The short version

\lilypond[quote,fragment,staffsize=11]{<c' e' g'>}

produces

[image of music]

The default line width of the music is computed by examining the commands in the document preamble (that is, the part of the document before \begin{document}). The lilypond-book command sends these to LaTeX to find out how wide the text is. The line width for music fragments is then adjusted to the text width. Note that this heuristic algorithm can fail easily; in such cases it is necessary to use the line-width music fragment option.

Note: Make sure that your preamble actually compiles without errors, otherwise line width detection will fail. You can test this by directly processing your document with LaTeX, using an empty \begin{document} ... \end{document} block.

If you use a landscape paper format, be sure to add the keyword landscape to the option list of the \documentclass macro.5

Each snippet calls the following macros if they have been defined by the user:

  • \preLilyPondExample is called before the music,
  • \postLilyPondExample is called after the music,
  • \betweenLilyPondSystem[1] is called between systems if lilypond-book splits the snippet into several chunks. It must be defined as taking one parameter, which is the number of files already included in this snippet. The default is to simply insert \linebreak.

Selected Snippets

Sometimes it is useful to display music elements (such as ties and slurs) as if they continued after the end of the fragment. This can be done by breaking the staff and suppressing inclusion of the rest of the LilyPond output.

In LaTeX, define \betweenLilyPondSystem in such a way that inclusion of other systems is terminated once the required number of systems are included. Since \betweenLilyPondSystem is first called after the first system, including only the first system is trivial.

\def\betweenLilyPondSystem#1{\endinput}

\begin{lilypond}[fragment]
  c'1\( e'( c'~ \break c' d) e f\)
\end{lilypond}

If a greater number of systems is requested, a TeX conditional must be used before \endinput. In this example, replace value 2 by the number of systems you want in the output.

\def\betweenLilyPondSystem#1{
  \ifnum#1<2\else\expandafter\endinput\fi
}

(Since \endinput immediately stops the processing of the current input file we need \expandafter to delay the call of \endinput after executing \fi so that the \if ... \fi clause is balanced.)

Remember that the definition of \betweenLilyPondSystem is effective until the current group is finished (such as the LaTeX environment) or is overridden by another definition (which it is, in most cases, for the rest of the document). To reset your definition, write

\let\betweenLilyPondSystem\undefined

in your LaTeX source.

This may be simplified by defining a TeX macro

\def\onlyFirstNSystems#1{
  \def\betweenLilyPondSystem##1{%
    \ifnum##1<#1\else\expandafter\endinput\fi}
}

and then saying only how many systems you want before each fragment,

\onlyFirstNSystems{3}
\begin{lilypond}…\end{lilypond}
\onlyFirstNSystems{1}
\begin{lilypond}…\end{lilypond}

See also

There are specific lilypond-book command-line options and other details to know when processing LaTeX documents, see Invoking lilypond-book.


3.2.2 Texinfo

Texinfo is the standard format for documentation of the GNU project. An example of a Texinfo document is this manual. The HTML, PDF, and Info versions of the manual are made from the Texinfo document.

lilypond-book provides the following commands and environments to include music in Texinfo files:

  • the @lilypond{…} command to directly enter short LilyPond code,
  • the @lilypond…@end lilypond environment to directly enter longer LilyPond code,
  • the @lilypondfile{…} command to insert a LilyPond file,
  • the @musicxmlfile{…} command to insert a MusicXML file, which gets processed by musicxml2ly and lilypond.

In the input file, music is specified with any of the following commands

@lilypond[options,go,here]
  YOUR LILYPOND CODE
@end lilypond

@lilypond[options,go,here]{ YOUR LILYPOND CODE }

@lilypondfile[options,go,here]{filename}

@musicxmlfile[options,go,here]{filename}

Additionally, @lilypondversion displays the current version of LilyPond.

All of the above commands must start a line (possibly preceded by whitespace), even if used with the inline fragment option. There must be also no text after the closing brace (for @lilypond{...}) or @end lilypond.

When lilypond-book is run on it, this results in a Texinfo file (with extension .texi) containing @image tags for HTML, Info and printed output. lilypond-book generates images of the music in EPS and PDF formats for use in the printed output, and in PNG format for use in HTML and Info output.

We show some examples here. The lilypond environment

@lilypond[quote,fragment]
  c'4 d' e' f' g'2 g'
@end lilypond

produces

[image of music]

The short version

@lilypond[quote,fragment,staffsize=11]{<c' e' g'>}

produces

[image of music]

See also

There are specific lilypond-book command-line options and other details to know when processing Texinfo documents, see Invoking lilypond-book.


3.2.3 HTML

lilypond-book provides the following commands and environments to include music in HTML files:

  • the <lilypond … /> command to directly enter short LilyPond code,
  • the <lilyond>…</lilypond> environment to directly enter longer LilyPond code,
  • the <lilypondfile>…</lilypondfile> command to insert a LilyPond file,
  • the <musicxmlfile>…</musicxmlfile> command to insert a MusicXML file, which gets processed by musicxml2ly and lilypond.

In the input file, music is specified with any of the following commands:

<lilypond options go here>
  YOUR LILYPOND CODE
</lilypond>

<lilypond options go here: YOUR LILYPOND CODE />

<lilypondfile options go here>filename</lilypondfile>

<musicxmlfile options go here>filename</musicxmlfile>

Additionally, <lilypondversion/> displays the current version of LilyPond.

We show some examples here. The lilypond environment

<lilypond quote fragment staffsize=26>
  c'4 d' e' f' g'2 g'
</lilypond>

produces

[image of music]

The short version

<lilypond quote fragment staffsize=11: <c' e' g'> />

produces

[image of music]

See also

There are specific lilypond-book command-line options and other details to know when processing HTML documents, see Invoking lilypond-book.


3.2.4 DocBook

For inserting LilyPond snippets it is good to keep the conformity of DocBook documents, allowing the use of DocBook editors, validation, etc. For this reason no custom tags are provided, only specifying conventions based on standard DocBook elements.

Common conventions

For inserting all types of snippets we use the mediaobject and inlinemediaobject elements to format snippets inline or not inline, respectively. The snippet formatting options are always provided in the role property of the innermost element (see next sections). Tags are chosen to allow DocBook editors format the content gracefully. The DocBook files to be processed with lilypond-book should have the extension .lyxml.

Including a LilyPond file

This is the simplest case. We must use the .ly extension for the included file and insert it as a standard imageobject, with the following structure:

<mediaobject>
  <imageobject>
    <imagedata fileref="music1.ly"
               role="printfilename" />
  </imageobject>
</mediaobject>

Note that you can use mediaobject or inlinemediaobject as the outermost element as you wish.

Including LilyPond code

Including LilyPond code is possible by using a programlisting environment where the language is set to lilypond, with the following structure:

<inlinemediaobject>
  <textobject>
    <programlisting language="lilypond"
                    role="fragment verbatim staffsize=16
                          ragged-right relative=2">
\context Staff \with {
  \remove Time_signature_engraver
  \remove Clef_engraver}
  { c4( fis) }
    </programlisting>
  </textobject>
</inlinemediaobject>

As you can see, the outermost element is a mediaobject or inlinemediaobject, and there is a textobject containing the programlisting inside.

Processing the DocBook document

Running lilypond-book on a .lyxml file creates a valid DocBook document (with extension .xml) to be further processed. If you use dblatex, it creates a PDF file from this document automatically. For HTML (HTML Help, JavaHelp, etc.) generation you can use the official DocBook XSL stylesheets; however, it is possible that you have to make some customization for it.


3.3 Music fragment options

In the following, a ‘lilypond-book command’ refers to any command described in the previous sections that is handled by lilypond-book to produce a music snippet. For simplicity, lilypond-book commands are only shown in Texinfo syntax (i.e., starting with ‘@’) to make them better distinguishable from LilyPond commands.

Note that the option string is parsed from left to right; if an option occurs multiple times, the last one is taken.

The following options are available for lilypond-book commands:

staffsize=ht

Set staff size to ht, which is measured in points.

ragged-right

Produce ragged-right lines with natural spacing, i.e., ragged-right = ##t is added to the LilyPond snippet. Single-line snippets will always be typeset by default as ragged-right, unless noragged-right is explicitly given.

noragged-right

For single-line snippets, allow the staff length to be stretched to equal that of the line width, i.e., ragged-right = ##f is added to the LilyPond snippet.

line-width
line-width=size\unit

Set line width to size (expressed in unit). unit is one of the following: cm, mm, in, pt, or bp. This option affects LilyPond output (that is, the staff length of the music fragment), not the text layout.

If used without an argument, or if no line-width option is given, lilypond-book tries to guess a default for lilypond environments that don’t use the ragged-right option.

See also option papersize.

papersize=string

Set paper size to string (for example a5 or letter) for music fragments that use \book. See Predefined paper sizes for a list of available paper sizes.

This option affects LilyPond output (that is, the paper size of the music fragment), not the text layout. Unknown values of string are ignored: a warning is emitted and the snippet is printed using the document’s paper size for LaTeX and Texinfo, and the A4 paper format for HTML and DocBook.

If option papersize is given without option line-width (more specifically, option line-width without an argument), LilyPond uses its own idea of the default line width within the snippet, also ignoring option quote (which still makes lilypond-book emit a quotation block, though).

paper-width=size\unit

Set paper width to size (expressed in unit) for music fragments that use \book. unit is one of the following: cm, mm, in, pt, or bp.

This option affects LilyPond output (that is, the paper width of the music fragment), not the text layout. If set, it overrides option papersize if given. If option paper-height is not specified, the paper height is set to the document’s paper height for LaTeX and Texinfo, and the A4 paper height (296mm) for HTML and DocBook.

paper-height=size\unit

Set paper height to size (expressed in unit) for music fragments that use \book. unit is one of the following: cm, mm, in, pt, or bp.

This option affects LilyPond output (that is, the paper height of the music fragment), not the text layout. If set, it overrides option papersize if given. If option paper-width is not specified, the paper width is set to the document’s paper width for LaTeX and Texinfo, and the A4 paper width (210mm) for HTML and DocBook.

Example:

\lilypond[paper-width=10\cm, paper-height=57\mm]{
  \book {
    ...
  }
}
notime

Do not print the time signature and turn off the timing (time signature, bar lines) in the score.

fragment

Make lilypond-book add some boilerplate code so that you can simply enter, say,

c'4

without \layout, \score, etc.

nofragment

Do not add additional code to complete LilyPond code in music snippets. Since this is the default, nofragment is redundant normally.

inline
inline=vshift

Set up snippet for inline use, that is, to be typeset within a paragraph. The snippet itself is formatted with a very small left padding (approximately the same as the right padding), ignoring the value given by the command-line option --left-padding.

For the LaTeX backend, the inline image gets shifted vertically; vshift is a factor of the current image’s height. If no argument is given a default value of -0.3 is used, thus moving the image down by approx. one third of its height. The default value can be adjusted with command-line option --inline-vshift.

For Texinfo output, it suppresses the insertion of a blank line before and after the snippet. For HTML output, it suppresses the insertion of <p> before and </p> after the snippet.

To actually make a snippet appear inline in LaTeX and Texinfo mode, it is necessary to position it within a paragraph, avoiding an empty line before and after the snippet. For example, this LaTeX code

The motive
\lilypond[inline,staffsize=11]{
  { \time 2/4 r8 g'[ g' g'] | es'2 }
}
is widely known.

becomes

The motive [image of music] is widely known.

indent=size\unit

Set indentation of the first music system to size (expressed in unit). unit is one of the following: cm, mm, in, pt, or bp. This option affects LilyPond, not the text layout.

noindent

Set indentation of the first music system to zero. This option affects LilyPond, not the text layout. Since no indentation is the default, noindent is redundant normally.

quote

Reduce line length of a music snippet by 2*0.4in and put the output into a quotation block. The value ‘0.4in’ can be controlled with the exampleindent option.

See also option papersize.

exampleindent

Set the amount by which the quote option indents a music snippet.

relative
relative=n

Use relative octave mode. By default, notes are specified relative to middle C. The optional integer argument specifies the octave of the starting note, where the default 1 is middle C. relative option only works when fragment option is set, so fragment is automatically implied by relative, regardless of the presence of any (no)fragment option in the source.

LilyPond also uses lilypond-book to produce its own documentation. To do that, some more obscure music fragment options are available.

verbatim

The argument of a lilypond-book command is copied to the output file and enclosed in a verbatim block, followed by any text given with the intertext option (not implemented yet); then the actual music is displayed. This option does not work well with @lilypond{} if it is part of a paragraph.

If verbatim is used in a lilypondfile command, it is possible to enclose verbatim only a part of the source file. If the source file contain a comment containing ‘begin verbatim’ (without quotes), quoting the source in the verbatim block will start after the last occurrence of such a comment; similarly, quoting the source verbatim will stop just before the first occurrence of a comment containing ‘end verbatim’, if there is any. In the following source file example, the music will be interpreted in relative mode, but the verbatim quote will not show the relative block, i.e.,

\relative { % begin verbatim
  c'4 e2 g4
  f2 e % end verbatim
}

will be printed with a verbatim block like

  c4 e2 g4
  f2 e

If you would like to translate comments and variable names in verbatim output but not in the sources, you may set the environment variable LYDOC_LOCALEDIR to a directory path; the directory should contain a tree of .mo message catalogs with lilypond-doc as a domain.

texidoc

(Only for Texinfo output, and only for @lilypondfile.) If lilypond is called with the --header=texidoc option, and the file to be processed is called foo.ly, it creates a file foo.texidoc if there is a texidoc field in the \header block of foo.ly. lilypond-book’s texidoc option makes it include such a file, adding its contents as a documentation block right before the music snippet (but outside the example environment generated by a quote option).

Assuming the file foo.ly contains

\header {
  texidoc = "This file demonstrates a single note."
}
{ c'4 }

and we have this in our Texinfo document test.texinfo

@lilypondfile[texidoc]{foo.ly}

the following command line gives the expected result

lilypond-book --pdf \
              --process="lilypond --header=texidoc" \
              test.texinfo

All LilyPond documentation snippets (in the Documentation/snippets directory of the distribution) are .ly files that have such texidoc fields in their \header blocks.

For localization purposes, if the Texinfo document contains @documentlanguage XX and foo.ly’s \header block contains a texidocXX field, and if lilypond is called with --header=texidocXX, then foo.texidocXX gets included instead of foo.texidoc, if present. XX is usually a two-letter string like ‘de’ (for German) or ‘ca’ (for Catalan).

doctitle

(Only for Texinfo output, and only for @lilypondfile.) This option works similarly to the texidoc option: if lilypond is called with the --header=doctitle option, and the file to be processed is called foo.ly and contains a doctitle field in the \header block, it creates a file foo.doctitle. When the doctitle option is used, the contents of foo.doctitle, which should be a single line of text, is inserted in the Texinfo document as @lydoctitle text. @lydoctitle should be a macro defined in the Texinfo document. The same remark about texidoc processing with localized documentation also applies to doctitle.

nogettext

(Only for Texinfo output.) Do not translate comments and variable names in the snippet quoted verbatim.

printfilename

If a LilyPond input file is included with lilypondfile command, print the file name right before the music snippet. For HTML output, this is a link. Only the base name of the file is printed, i.e., the directory part of the file path is stripped.


3.4 Invoking lilypond-book

lilypond-book produces a file with one of the following extensions: .tex, .texi, .html or .xml, depending on the output format. All of .tex, .texi and .xml files need further processing.

Format-specific instructions

LaTeX

There are two ways of processing your LaTeX document for printing or publishing: getting a PDF file directly with pdfLaTeX (XeLaTeX, luaLaTeX) or getting a PostScript file with LaTeX via a DVI-to-PostScript translator like dvips. The first way is simpler and recommended6, and whichever way you use, you can easily convert between PostScript and PDF with tools, like ps2pdf and pdf2ps included in Ghostscript package.

To produce a PDF file with pdfLaTeX, use:

lilypond-book --pdf yourfile.lytex
pdflatex yourfile.tex

To produce PDF output via LaTeX/dvips/ps2pdf:

lilypond-book yourfile.lytex
latex yourfile.tex
dvips -Ppdf yourfile.dvi
ps2pdf yourfile.ps

The .dvi file created by this process will not contain note heads. This is normal; if you follow the instructions, they will be included in the .ps and .pdf files.

Running dvips may produce some warnings about fonts; these are harmless and may be ignored. If you are running latex in twocolumn mode, remember to add -t landscape to the dvips options.

Environments such as

\begin{lilypond} … \end{lilypond}

are not interpreted by LaTeX. Instead, lilypond-book extracts those ‘environments’ into files of its own and runs LilyPond on them. It then takes the resulting graphics and creates a .tex file where the \begin{lilypond}\end{lilypond} macros are replaced by ‘graphics inclusion’ commands. It is at this time that LaTeX is run (although LaTeX will have run previously, it will have been, effectively, on an ‘empty’ document in order to calculate paper dimensions and the line width for LilyPond snippets).

Known issues and warnings

The \pageBreak command will not work within a \begin{lilypond} … \end{lilypond} environment.

Many \paper block variables will also not work within a \begin{lilypond} … \end{lilypond} environment. Use \newcommand with \betweenLilyPondSystem in the preamble.

\newcommand{\betweenLilyPondSystem}[1]{\vspace{36mm}\linebreak}

Texinfo

To produce a Texinfo document (in any output format), follow the normal procedures for Texinfo; that is, either call texi2pdf or texi2dvi or texi2any, depending on the output format you want to create. By default, texi2pdf uses pdftex for processing, which you can verify in the console output. In this case, run lilypond-book with the --pdf option so that it creates .pdf snippets instead of .eps files. pdftex is unable to include the latter ones and will output an error message otherwise.

See the documentation of Texinfo for further details.

Command-line options

lilypond-book accepts the following command-line options.

-f format
--format=format

Specify the document type to process: html, latex, texi (the default), texi-html, or docbook. If this option is missing, lilypond-book tries to detect the format automatically, see Filename extensions. Currently, texi-html is the same as texi.

-F filter
--filter=filter

Pipe snippets through filter. With this option, lilypond-book does not create snippet files; instead, it modifies the code of the embedded snippets in the input document and emits the resulting file, which in turn can then be processed by another run with lilypond-book (without the --filter option). Example:

lilypond-book --filter='convert-ly --from=2.0.0 -' my-book.tely

lilypond-book does not accept options --filter and --process at the same time.

-h
--help

Print a short help message.

-I dir
--include=dir

Add dir to the include path. Since lilypond-book also looks for already compiled snippets in the include path and does not write them back to the output directory, it is necessary in some cases to invoke further processing commands such as texi2any or latex with the same -I dir options.

-l loglevel
--loglevel=loglevel

Set the output verbosity to loglevel. Possible values are NONE, ERROR, WARN, PROGRESS (default), and DEBUG. If this option is not used and the environment variable LILYPOND_BOOK_LOGLEVEL is set, its value is used as the log level.

-o dir
--output=dir

Place generated files into directory dir. Running lilypond-book generates lots of small files that LilyPond will process. To avoid all that clutter in the source directory, use the --output command-line option, and change to that directory before running latex or texi2any.

lilypond-book --output=out yourfile.lytex
cd out
…
--skip-lily-check

Do not fail if no LilyPond output is found. It is used for generating LilyPond’s Info documentation without images.

--skip-png-check

Do not fail if no PNG images are found for EPS files. It is used for generating LilyPond’s Info documentation without images.

--lily-output-dir=dir

Write lily-XXX files to directory dir and link into --output directory. Use this option to save building time for documents in different directories that share a lot of identical snippets.

--lily-loglevel=loglevel

Set the output verbosity of the invoked lilypond command to loglevel. Possible values are NONE, ERROR, WARN, BASIC, PROGRESS, INFO (default), and DEBUG. If this option is not used and the environment variable LILYPOND_LOGLEVEL is set, its value is used as the log level.

--info-images-dir=dir

Format Texinfo output so that Info will look for images of music in directory dir.

--inline-vshift=vshift

In the LaTeX backend, use vshift to vertically move all inline images. vshift is a factor of an image’s height; the default value is -0.3, thus moving the images down by approx. one third of their individual heights. The factor can be locally overridden with an argument to the inline snippet option.

--latex-program=prog

Run executable prog instead of latex. This is useful if your document is processed with xelatex, for example.

--left-padding=amount

Pad LilyPond snippets on the left with whitespace.

amount is given in millimeters relative to the start of the staff. The default value is 3.0mm.

The widths of tightly clipped systems can vary due to notation elements such as bar numbers or instrument names that are positioned left of the beginning of staves. The padding sets the minimum distance between the left margin of the snippet images and the beginning of (non-indented) staves; this allows the expected vertical alignment of snippets in the master document.

In addition to padding at the left, this option shortens each staff line by amount. As a consequence, each line is moved to the right visually.

Note that amount, as used for padding, is rounded up to be an integer multiple of the big point (bp) unit for PostScript and PDF output (one bp is 1/72th of an inch, approx. 0.353mm). However, this is not done on the LilyPond side for shortening the staff line. This might lead to a tiny but probably surprising staff length change instead of changing the padding if amount is not an integer multiple of the bp unit.

-P command
--process=command

Process LilyPond snippets using command. The default command is lilypond. lilypond-book does not accept options --filter and --process at the same time.

--pdf

Create PDF snippet files. If not set, only PNG and EPS files are produced. Use this option if you want to directly embed PDF files into LaTeX or Texinfo files.

--redirect-lilypond-output

By default, logging output is displayed on the terminal. This option redirects all output to log files in the same directory as the source files.

--use-source-file-names

Write snippet output files with the same base name as their source file. This option works only for snippets included with the lilypondfile command and only if directories implied by --output-dir and --lily-output-dir options are different.

-V
--verbose

Be verbose. This is equivalent to --loglevel=DEBUG.

-v
--version

Print version information.

Known issues and warnings

The Texinfo command @pagesizes is not interpreted. Similarly, LaTeX commands that change margins and line widths after the preamble are ignored.

Only the first \score of a LilyPond block is processed.


3.5 Filename extensions

You can use any file name extension for the input file, but if you do not use the recommended extension for a particular format you may need to manually specify the output format; for details, see Invoking lilypond-book. Otherwise, lilypond-book automatically selects the output format based on the input file name’s extension.

extensionoutput format
.htmlHTML
.htmlyHTML
.itelyTexinfo
.latexLaTeX
.lytexLaTeX
.lyxmlDocBook
.telyTexinfo
.texLaTeX
.texiTexinfo
.texinfoTexinfo
.xmlHTML

If you use the same file name extension for the input file than the extension lilypond-book uses for the output file, and if the input file is in the same directory as lilypond-book working directory, you must use --output option to make lilypond-book running, otherwise it will exit with an error message like “Output would overwrite input file”.


3.6 Parallel execution

The lilypond-book script cannot be used to process documents in parallel if the output directory is the same. If you try to do so, sequential execution (in arbitrary order) of the lilypond-book processes is enforced instead by using a lock file.

In other words, to process documents foo.lytex and bar.lytex at the same time (via the make utility, for example), put them either into two different directories, say, foo/foo.lytex and bar/bar.lytex, or use command-line option --output with different values.

Note that LilyPond itself can process multiple input files in parallel, actually. Since lilypond-book passes a list of all snippets in a document to lilypond in one rush, parallel execution is possible by using its -djob-count option.

lilypond-book --process="lilypond -djob-count=4" \
              --output=foo \
              ... \
              foo.lytex

3.7 lilypond-book templates

These templates are for use with lilypond-book. If you’re not familiar with this program, please refer to Running lilypond-book.

LaTeX

You can include LilyPond fragments in a LaTeX document.

\documentclass{article}

% here you can insert packages all LaTeX flavours understand
\usepackage[ngerman,finnish,english]{babel}
\usepackage{graphicx}
\usepackage{libertinus}

\usepackage{iftex}
\ifxetex
  % stuff specific to XeTeX
  \usepackage{xltxtra}
\else
  % this can be empty if you are not going to use pdfTeX
  \usepackage[T1]{fontenc}
\fi


\begin{document}

\title{A short document with LilyPond and \LaTeX}
\maketitle

Normal \textbf{font} commands inside the \emph{text} work,
because they are \textsf{supported by all \LaTeX{} flavours}.
If you want to use specific commands like \verb+\XeTeX+, you
should include them again in a \verb+\ifxetex+ block.
You can use this to print the \ifxetex \XeTeX{} \else XeTeX \fi
command, which is not known to pdfTeX by default.

In normal text you can easily use LilyPond commands, like this:

\smallskip
\begin[staffsize=12]{lilypond}
{ a2^"foo" b_"bar" c'8 c' c' c' }

\paper {
  property-defaults.fonts.serif = "Libertinus Serif"
}
\end{lilypond}
\smallskip

\noindent
Note that the fonts used in snippets have to be set from inside
the snippets, as demonstrated.

\selectlanguage{ngerman}
Da die Standard-Eingabekodierung von \LaTeX{} UTF-8 ist,
funktionieren Umlaute u.\,ä. ohne \LaTeX-Akzentbefehle (ßäöü),
wenn sie von der Schriftart unterstützt werden.

\end{document}

Texinfo

You can include LilyPond fragments in Texinfo; in fact, this entire manual is written in Texinfo.

\input texinfo 
@ifnottex
@node Top
@top
@end ifnottex

Texinfo text

@lilypond
\relative {
  a4 b c d
}
@end lilypond

More Texinfo text, and options in brackets.

@lilypond[verbatim,fragment,ragged-right]
d4 c b a
@end lilypond

@bye

HTML

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<HTML>
<body>

<p>
Documents for lilypond-book may freely mix music and text.  For
example,
<lilypond>
\relative {
  a'4 b c d
}
</lilypond>
</p>

<p>
Another bit of lilypond, this time with options:

<lilypond fragment quote staffsize=26 verbatim>
a4 b c d
</lilypond>
</p>

</body>
</html>

3.8 Sharing the table of contents

These functions already exist in the OrchestralLily package:

For greater flexibility in text handling, some users prefer to export the table of contents from lilypond and read it into LaTeX.

Exporting the ToC from LilyPond

This assumes that your score has multiple movements in the same lilypond output file.

#(define (oly:create-toc-file layout pages)
  (let* ((label-table (ly:output-def-lookup layout 'label-page-table)))
    (if (not (null? label-table))
      (let* ((format-line (lambda (toc-item)
             (let* ((label (car toc-item))
                    (text  (caddr toc-item))
                    (label-page (and (list? label-table)
                                     (assoc label label-table)))
                    (page (and label-page (cdr label-page))))
               (format #f "~a, section, 1, {~a}, ~a" page text label))))
             (formatted-toc-items (map format-line (toc-items)))
             (whole-string (string-join formatted-toc-items ",\n"))
             (output-name (ly:parser-output-name))
             (outfilename (format #f "~a.toc" output-name))
             (outfile (open-output-file outfilename)))
        (if (output-port? outfile)
            (display whole-string outfile)
            (ly:warning (G_ "Unable to open output file ~a for the TOC information") outfilename))
        (close-output-port outfile)))))

\paper {
  #(define (page-post-process layout pages) (oly:create-toc-file layout pages))
}

Importing the ToC into LaTeX

In LaTeX, the header should include:

\usepackage{pdfpages}
\includescore{nameofthescore}

where \includescore is defined as:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% \includescore{PossibleExtension}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

% Read in the TOC entries for a PDF file from the corresponding .toc file.
% This requires some heave latex tweaking, since reading in things from a file
% and inserting it into the arguments of a macro is not (easily) possible

% Solution by Patrick Fimml on #latex on April 18, 2009:
% \readfile{filename}{\variable}
% reads in the contents of the file into \variable (undefined if file
% doesn't exist)
\newread\readfile@f
\def\readfile@line#1{%
{\catcode`\^^M=10\global\read\readfile@f to \readfile@tmp}%
\edef\do{\noexpand\g@addto@macro{\noexpand#1}{\readfile@tmp}}\do%
\ifeof\readfile@f\else%
\readfile@line{#1}%
\fi%
}
\def\readfile#1#2{%
\openin\readfile@f=#1 %
\ifeof\readfile@f%
\typeout{No TOC file #1 available!}%
\else%
\gdef#2{}%
\readfile@line{#2}%
\fi
\closein\readfile@f%
}%


\newcommand{\includescore}[1]{
\def\oly@fname{\oly@basename\@ifmtarg{#1}{}{_#1}}
\let\oly@addtotoc\undefined
\readfile{\oly@xxxxxxxxx}{\oly@addtotoc}
\ifx\oly@addtotoc\undefined
\includepdf[pages=-]{\oly@fname}
\else
\edef\includeit{\noexpand\includepdf[pages=-,addtotoc={\oly@addtotoc}]
{\oly@fname}}\includeit
\fi
}

3.9 Alternative methods of mixing text and music

Other means of mixing text and music (without lilypond-book) are discussed in LilyPond output in other programs.


4 External programs

LilyPond can interact with other programs in various ways.


4.1 Point and click

Point and click lets you find notes in the input by clicking on them in the PDF viewer. This makes it easier to find input that causes some error in the sheet music.


4.1.1 Configuring the system

When this functionality is active, LilyPond adds hyperlinks to PDF and SVG files. These hyperlinks are sent to a ‘URI helper’ or a web-browser, which opens a text-editor with the cursor in the right place.

To make this chain work, you should configure your PDF viewer to follow hyperlinks using the lilypond-invoke-editor script supplied with LilyPond.

The program lilypond-invoke-editor is a small helper program. It will invoke an editor for the special textedit URIs, and run a web browser for others. It looks up the environment variables EDITOR and LYEDITOR to find out and launch the favorite editor to use. LYEDITOR will have priority over EDITOR, so we recommend using the former especially if you want to use one editor in the terminal and another editor for LilyPond point and click.

Every editor may have a different syntax to open a file in a specific line and column. For user’s convenience, LilyPond comes with ready commands for several editors, listed in scripts/lilypond-invoke-editor.py. This means that you can simply write the editor binary name, e.g.:

export LYEDITOR=atom

and this will invoke

atom %(file)s:%(line)s:%(column)s

where %(file)s, %(line)s and %(column)s are replaced with the file, line and column respectively.

In order to use an editor not listed in the script, you should find its specific syntax and assign the full command to LYEDITOR. Here’s an example for Visual Studio Code editor:

export LYEDITOR="code --goto %(file)s:%(line)s:%(column)s"

Note: If you choose Emacs, an extra configuration is needed. You should add the line (server-start) to your ~/.emacs file, otherwise every click on an object in the PDF will open a new Emacs window.


Using GNOME

In GNOME, URIs are handled via ‘.desktop’ files. Create a file in a local directory such as /tmp that is called lilypond-invoke-editor.desktop and has the contents;

[Desktop Entry]
Version=1.0
Name=lilypond-invoke-editor
GenericName=Textedit URI handler
Comment=URI handler for textedit:
Exec=lilypond-invoke-editor %u
Terminal=false
Type=Application
MimeType=x-scheme-handler/textedit;
Categories=Editor
NoDisplay=true

and then execute the commands

xdg-desktop-menu install ./lilypond-invoke-editor.desktop
xdg-mime default lilypond-invoke-editor.desktop x-scheme-handler/textedit

After that invocation;

xdg-open textedit:///etc/issue:1:0:0

should call lilypond-invoke-editor for opening files.


Extra configuration for Evince

If xdg-open works, but Evince still refuses to open point and click links due to denied permissions, you might need to change the Apparmor profile of Evince which controls the kind of actions Evince is allowed to perform.

For Ubuntu, the process is to edit the file /etc/apparmor.d/local/usr.bin.evince and append the following lines:

# For Textedit links
/usr/local/bin/lilypond-invoke-editor Cx -> sanitized_helper,

After adding these lines, call

sudo apparmor_parser -r -T -W /etc/apparmor.d/usr.bin.evince

Now Evince should be able to open point and click links. It is likely that similar configurations will work for other viewers.


Enabling point and click

Point and click functionality is enabled by default when creating PDF or SVG files.

The point and click links enlarge the output files significantly. For reducing the size of these (and PS) files, point and click may be switched off by issuing

\pointAndClickOff

in a .ly file. Point and click may be explicitly enabled with

\pointAndClickOn

Alternately, you may disable point and click with a command-line option:

lilypond -dno-point-and-click file.ly

Note: You should always turn off point and click in any LilyPond files to be distributed to avoid including path information about your computer in the PDF file, which can pose a security risk.


Selective point-and-click

For some interactive applications, it may be desirable to only include certain point-and-click items. For example, if somebody wanted to create an application which played audio or video starting from a particular note, it would be awkward if clicking on the note produced the point-and-click location for an accidental or slur which occurred over that note.

This may be controlled by indicating which events to include:

  • Hard-coded in the .ly file:
    \pointAndClickTypes #'note-event
    \relative {
      c'2\f( f)
    }
    

    or

    #(ly:set-option 'point-and-click 'note-event)
    \relative {
      c'2\f( f)
    }
    
  • Command line:
    lilypond -dpoint-and-click=note-event example.ly
    

Multiple events can be included:

  • Hard-coded in the .ly file:
    \pointAndClickTypes #'(note-event dynamic-event)
    \relative {
      c'2\f( f)
    }
    

    or

    #(ly:set-option 'point-and-click '(note-event dynamic-event))
    \relative {
      c'2\f( f)
    }
    
  • Command line:
    lilypond \
      -dpoint-and-click="(note-event dynamic-event)" \
      example.ly
    

4.2 Text editor support

There is support for different text editors for LilyPond.


Emacs mode

Emacs has a lilypond-mode, which provides keyword autocompletion, indentation, LilyPond specific parenthesis matching and syntax coloring, handy compile short-cuts and reading LilyPond manuals using Info. If lilypond-mode is not installed on your platform, see below.

An Emacs mode for entering music and running LilyPond is contained in the source archive in the elisp directory. Do make install to install it to elispdir. The file lilypond-init.el should be placed to load-path/site-start.d/ or appended to your ~/.emacs or ~/.emacs.el.

As a user, you may want add your source path (e.g. ~/site-lisp/) to your load-path by appending the following line (as modified) to your ~/.emacs

(setq load-path (append (list (expand-file-name "~/site-lisp")) load-path))

Vim mode

For Vim, a filetype plugin, indent mode, and syntax-highlighting mode are available to use with LilyPond. To enable all of these features, create (or modify) your $HOME/.vimrc to contain these three lines, in order:

filetype off
set runtimepath+=/usr/local/share/lilypond/current/vim/
filetype on
syntax on

If LilyPond is not installed in the /usr/local/ directory, change the path appropriately. This topic is discussed in Other sources of information.


Other editors

Other editors (both text and graphical) support LilyPond, but their special configuration files are not distributed with LilyPond. Consult their documentation for more information. Such editors are listed in Easier editing.


4.3 Converting from other formats

Music can be entered also by importing it from other formats. This chapter documents the tools included in the distribution to do so. There are other tools that produce LilyPond input, for example GUI sequencers and XML converters. Refer to the website for more details.

These are separate programs from lilypond itself, and are run on the command line; see Command-line usage for more information.

Known issues and warnings

We unfortunately do not have the resources to maintain these programs; please consider them “as-is”. Patches are appreciated, but bug reports will almost certainly not be resolved.


4.3.1 Invoking midi2ly

midi2ly translates a Type 1 MIDI file to a LilyPond source file.

MIDI (Music Instrument Digital Interface) is a standard for digital instruments: it specifies cabling, a serial protocol and a file format. The MIDI file format is a de facto standard format for exporting music from other programs, so this capability may come in useful when importing files from a program that has a converter for a direct format.

midi2ly converts tracks into Staff and channels into Voice contexts. Relative mode is used for pitches, durations are only written when necessary.

It is possible to record a MIDI file using a digital keyboard, and then convert it to .ly. However, human players are not rhythmically exact enough to make a MIDI to LY conversion trivial. When invoked with quantizing (-s and -d options) midi2ly tries to compensate for these timing errors, but is not very good at this. It is therefore not recommended to use midi2ly for human-generated midi files.

It is invoked from the command line as follows,

midi2ly [option]… midi-file

Note that by ‘command line’, we mean the command line of the operating system. See Converting from other formats, for more information about this.

The following options are supported by midi2ly.

-a, --absolute-pitches

Print absolute pitches.

-d, --duration-quant=DUR

Quantize note durations on DUR.

-e, --explicit-durations

Print explicit durations.

-h, --help

Show summary of usage.

-k, --key=acc[:minor]

Set default key. acc > 0 sets number of sharps; acc < 0 sets number of flats. A minor key is indicated by :1.

-o, --output=file

Write output to file.

-s, --start-quant=DUR

Quantize note starts on DUR.

-t, --allow-tuplet=DUR*NUM/DEN

Allow tuplet durations DUR*NUM/DEN.

-v, --verbose

Be verbose.

-V, --version

Print version number.

-w, --warranty

Show warranty and copyright.

-x, --text-lyrics

Treat every text as a lyric.

Known issues and warnings

Overlapping notes in an arpeggio will not be correctly rendered. The first note will be read and the others will be ignored. Set them all to a single duration and add phrase markings or pedal indicators.


4.3.2 Invoking musicxml2ly

MusicXML is an XML dialect for representing music notation.

musicxml2ly extracts notes, articulations, score structure and lyrics from ‘part-wise’ MusicXML files then writes them to a .ly file. It is run from the command line as follows;

musicxml2ly [option]… file.xml

Note that by ‘command line’, we mean the command line of the operating system. See Converting from other formats, for more information about this.

If - is used instead of file.xml, musicxml2ly reads all input directly from the command line.

The following options are supported by musicxml2ly:

-a, --absolute

convert pitches in absolute mode.

--fb --fretboards

converts <frame> events to a separate FretBoard voice instead of markups.

-h, --help

print usage and a summary of all the available command-line options.

-l, --language=LANG

use LANG for pitch names, e.g. deutsch for note names in German.

--loglevel=LOGLEVEL

Sets the output verbosity to LOGLEVEL. Possible values are NONE, ERROR, WARN, PROGRESS (default) and DEBUG.

-m, --midi

activate the midi block in the .ly file.

--nb, --no-beaming

do not convert beaming information, use LilyPond’s automatic beaming instead.

--nd, --no-articulation-directions

do not convert directions (^, _ or -) for articulations, dynamics, etc.

--nrp, --no-rest-positions

do not convert exact vertical position of rests.

--nsb, --no-system-breaks

ignore system breaks.

--npl, --no-page-layout

do not convert the exact page layout and breaks (shortcut for --nsb --npb --npm options).

--npb, --no-page-breaks

ignore page breaks.

--npm, --no-page-margins

ignore page margins.

--nsd, --no-stem-directions

ignore stem directions from MusicXML, use lilypond’s automatic stemming instead.

-o, --output=FILE

set the output file name to FILE. If file is -, the output will be printed to stdout. If not given, xmlfile.ly will be used instead.

-r, --relative

convert pitches in relative mode (default).

--transpose=TOPITCH

the interval between pitch c and TOPITCH to transpose by.

--sm, --shift-meter=BEATS/BEATTYPE

change the length|duration of notes as a function of a given time signature to make the score look faster or slower, (e.g. 4/4 or 2/2).

--tc, --tab-clef=TABCLEFNAME

switch between two versions of tab clefs (tab and moderntab).

--sn --string-numbers=t[rue]/f[alse]

deactivate string number stencil with --string-numbers false. Default is true.

-v, --verbose

be verbose.

--version

show version number and exit.

-z, --compressed

input file is a zip-compressed MusicXML file.


4.3.3 Invoking abc2ly

Note: This is not currently supported and may eventually be removed from future versions of LilyPond.

ABC is a fairly simple ASCII based format. It is described at the ABC site:

http://www.walshaw.plus.com/abc/learn.html.

abc2ly translates from ABC to LilyPond. It is invoked as follows:

abc2ly [option]… abc-file

The following options are supported by abc2ly:

-b, --beams=None

preserve ABC’s notion of beams

-h, --help

this help

-o, --output=file

set output file name to file.

-s, --strict

be strict about success

--version

print version information.

There is a rudimentary facility for adding LilyPond code to the ABC source file. For example;

%%LY voices \set autoBeaming = ##f

This will cause the text following the keyword ‘voices’ to be inserted into the current voice of the LilyPond output file.

Similarly,

%%LY slyrics more words

will cause the text following the ‘slyrics’ keyword to be inserted into the current line of lyrics.

Known issues and warnings

The ABC standard is not very ‘standard’. For extended features (e.g., polyphonic music) different conventions exist.

Multiple tunes in one file cannot be converted.

ABC synchronizes words and notes at the beginning of a line; abc2ly does not.

abc2ly ignores the ABC beaming.


4.3.4 Invoking etf2ly

Note: This is not currently supported and may eventually be removed from future versions of LilyPond.

ETF (Enigma Transport Format) is a format used by Coda Music Technology’s Finale product. etf2ly will convert part of an ETF file to a ready-to-use LilyPond file.

It is invoked from the command line as follows;

etf2ly [option]… etf-file

Note that by ‘command line’, we mean the command line of the operating system. See Converting from other formats, for more information about this.

The following options are supported by etf2ly:

-h, --help

this help

-o, --output=FILE

set output file name to FILE

--version

version information

Known issues and warnings

The list of articulation scripts is incomplete. Empty measures confuse etf2ly. Sequences of grace notes are ended improperly.


4.3.5 Other formats

LilyPond itself does not come with support for any other formats, but some external tools can also generate LilyPond files. These are listed in Easier editing.


4.4 LilyPond output in other programs

This section shows methods to integrate text and music, different than the automated method with lilypond-book.


4.4.1 LuaTeX

As well as lilypond-book to integrate LilyPond output, there is an alternative program that can be used when using LuaTeX called lyluatex.


4.4.2 OpenOffice and LibreOffice

LilyPond notation can be added to OpenOffice.org and LibreOffice with OOoLilyPond, an OpenOffice.org extension that converts LilyPond files into images within OpenOffice.org documents. OOoLilyPond (OLy) works with recent versions of LibreOffice and OpenOffice. Older versions should work as well. It has even been tested with OpenOffice 2.4 without issues.


4.4.3 ly2video

Using the Python script ly2video it is possible to create videos that contain a horizontally scrolling score synchronized with a MIDI-generated audio rendering of the music. It is also possible to synchronize the video of the scrolling music notation with a previously recorded audio track of the same music, such as a live performance, even if the audio uses tempo rubato or is not precisely metronomic.


4.4.4 Other programs

When integrating LilyPond scores into documents in other software, you have to effectively mimick how lilypond-book runs lilypond.

Here we discuss how to create PNG images for use with online formats similar to HTML, and PDF and EPS for print-out formats similar to PDF.

PDF documents are usually formatted to enable printing. This means that long pieces of music must be distributed over several pages. For this mode of operation, invoke lilypond as

lilypond -dseparate-page-formats=pdf myfile.ly

This creates myfile-1.pdf, myfile-2.pdf, …, each containing a single page.

For embedding the images in a PostScript file, you can create EPS files, using -dseparate-page-formats=eps. In this case, you may also want to specify -dno-gs-load-fonts -dinclude-eps-fonts, otherwise the EPS files will not render if they are copied to another computer.

HTML documents are not printed, so they usually don’t have to worry about splitting music images across page breaks, and you can use a single (possibly very tall) image to represent a long score. This can be achieved with

lilypond -dtall-page-formats=png myfile.ly

yielding a myfile.png that has all the pages of myfile.ly stacked vertically.

Specifying either -dseparate-page-formats or -dtall-page-formats suppresses the standard output mode (single file with multiple pages) and the associated --formats option. Both options take a comma-separated list of formats and can be specified together, e.g.

lilypond -dseparate-page-formats=eps,pdf -dtall-page-formats=png,svg myfile.ly

To reduce the margins around the pages pass the -dno-use-paper-size-for-page option to crop extraneous whitespace. The following paper settings will elide page numbers and other footers that enlarge the page.

\paper{
  indent=0\mm
  oddFooterMarkup=##f
  oddHeaderMarkup=##f
  bookTitleMarkup = ##f
  scoreTitleMarkup = ##f
}

… music …

The above discusses how pages are dumped into output files, but for music integrated into text, you often don’t want full pages (possibly including page numbers, margins etc.), but rather lines of music. This is achieved by including lilypond-book-preamble.ly before a fragment of music. This makes a toplevel \score block render into lines of music rather than pages.

If you need to quote many fragments from a large score, you can also use the clip systems feature, see Extracting fragments of music.


4.5 Independent includes

Some users have produced files that can be \included with LilyPond to produce certain effects and those listed below are part of the LilyPond distribution. Also see Working with input files.


4.5.1 MIDI articulation

The Articulate project is an attempt to enhance LilyPond’s MIDI output and works by adjusting note lengths (that are not under slurs) according to the articulation markings attached to them. For example, a ‘staccato’ halves the note value, ‘tenuto’ gives a note its full duration and so on. See Enhancing MIDI output.


5 Suggestions for writing files

Now you’re ready to begin writing larger LilyPond input files – not just the little examples in the tutorial, but whole pieces. But how should you go about doing it?

As long as LilyPond can understand your input files and produce the output that you want, it doesn’t matter what your input files look like. However, there are a few other things to consider when writing LilyPond input files.

  • What if you make a mistake? The structure of a LilyPond file can make certain errors easier (or harder) to find.
  • What if you want to share your input files with somebody else? In fact, what if you want to alter your own input files in a few years? Some LilyPond input files are understandable at first glance; others may leave you scratching your head for an hour.
  • What if you want to upgrade your LilyPond file for use with a later version of LilyPond? The input syntax changes occasionally as LilyPond improves. Most changes can be done automatically with convert-ly, but some changes might require manual assistance. LilyPond input files can be structured in order to be easier (or harder) to update.

5.1 General suggestions

Here are a few suggestions that can help to avoid (and fix) the most common problems when typesetting:

  • Always include a \version number in your input files no matter how small they are. This prevents having to remember which version of LilyPond the file was created with and is especially relevant when Updating files with convert-ly command (which requires the \version statement to be present); or if sending your input files to other users (e.g., when asking for help on the mail lists). Note that all of the LilyPond templates contain \version numbers.
  • For each line in your input file, write one bar of music. This will make debugging any problems in your input files much simpler.
  • Include bar checks, bar number checks, as well as octave checks (see Bar and bar number checks and Octave checks). Including ‘checks’ of this type in your input files will help pinpoint mistakes more quickly. How often checks are added will depend on the complexity of the music being typeset. For simple compositions, checks added at a few at strategic points within the music can be enough but for more complex music, with many voices and/or staves, checks may be better placed after every bar.
  • Add comments within input files. References to musical themes (i.e. ‘second theme in violins’, ‘fourth variation,’ etc.), or simply including bar numbers as comments, will make navigating the input file much simpler especically if something needs to be altered later on or if passing on LilyPond input files to another person.
  • Add explicit note durations at the start of ‘sections’. For example, c4 d e f instead of just c d e f can make rearranging the music later on simpler.
  • Learn to indent and align braces and parallel music. Many problems are often caused by either ‘missing’ braces. Clearly indenting ‘opening’ and ‘closing’ braces (or << and >> indicators) will help avoid such problems. For example;
    \new Staff {
      \relative {
        r4 g'8 g c8 c4 d |
        e4 r8 |
        % Ossia section
        <<
          { f8 c c | }
          \new Staff {
            f8 f c |
          }
        >>
        r4 |
      }
    }
    

    is much easier to follow than;

    \new Staff { \relative { r4 g'8 g c4 c8 d | e4 r8
    % Ossia section
    << { f8 c c } \new Staff { f8 f c } >> r4 | } }
    
  • Keep music and style separate by putting overrides in the \layout block;
    \score {
      …music…
      \layout {
       \override TabStaff.Stemstencil = ##f
     }
    }
    

    This will not create a new context but it will apply when one is created. Also see Saving typing with variables and functions, and Style sheets.


5.2 Typesetting existing music

If you are entering music from an existing score (i.e., typesetting a piece of existing sheet music),

  • Enter the manuscript (the physical copy of the music) into LilyPond one system at a time (but still only one bar per line of text), and check each system when you finish it. You may use the showLastLength or showFirstLength properties to speed up processing – see Skipping corrected music.
  • Define mBreak = { \break } and insert \mBreak in the input file whenever the manuscript has a line break. This makes it much easier to compare the LilyPond music to the original music. When you are finished proofreading your score, you may define mBreak = { } to remove all those line breaks. This will allow LilyPond to place line breaks wherever it feels are best.
  • When entering a part for a transposing instrument into a variable, it is recommended that the notes are wrapped in
    \transpose c natural-pitch {…}
    

    (where natural-pitch is the open pitch of the instrument) so that the music in the variable is effectively in C. You can transpose it back again when the variable is used, if required, but you might not want to (e.g., when printing a score in concert pitch, converting a trombone part from treble to bass clef, etc.). Mistakes in transpositions are less likely if all the music in variables is at a consistent pitch.

    Also, only ever transpose to/from C. That means that the only other keys you will use are the natural pitches of the instruments - bes for a B-flat trumpet, aes for an A-flat clarinet, etc.


5.3 Large projects

When working on a large project, having a clear structure to your lilypond input files becomes vital.

  • Use a variable for each voice, with a minimum of structure inside the definition. The structure of the \score section is the most likely thing to change; the violin definition is extremely unlikely to change in a new version of LilyPond.
    violin = \relative {
    g'4 c'8. e16
    }
    …
    \score {
      \new GrandStaff {
        \new Staff {
          \violin
        }
      }
    }
    
  • Separate tweaks from music definitions. This point was made previously, but for large projects it is absolutely vital. We might need to change the definition of fthenp, but then we only need to do this once, and we can still avoid touching anything inside violin.
    fthenp = _\markup{
      \dynamic f \italic \small { 2nd } \hspace #0.1 \dynamic p }
    violin = \relative {
    g'4\fthenp c'8. e16
    }
    

5.4 Troubleshooting

Sooner or later, you will write a file that LilyPond cannot compile. The messages that LilyPond gives may help you find the error, but in many cases you need to do some investigation to determine the source of the problem.

The most powerful tools for this purpose are the single line comment (indicated by %) and the block comment (indicated by %{…%}). If you don’t know where a problem is, start commenting out huge portions of your input file. After you comment out a section, try compiling the file again. If it works, then the problem must exist in the portion you just commented. If it doesn’t work, then keep on commenting out material until you have something that works.

In an extreme case, you might end up with only

\score {
  <<
    % \melody
    % \harmony
    % \bass
  >>
  \layout{}
}

(in other words, a file without any music)

If that happens, don’t give up. Uncomment a bit – say, the bass part – and see if it works. If it doesn’t work, then comment out all of the bass music (but leave \bass in the \score uncommented.

bass = \relative {
%{
  c'4 c c c
  d d d d
%}
}

Now start slowly uncommenting more and more of the bass part until you find the problem line.

Another very useful debugging technique is constructing Tiny examples.


5.5 Make and Makefiles

Pretty well all the platforms LilyPond can run on support a software facility called make. This software reads a special file called a Makefile that defines what files depend on what others and what commands you need to give the operating system to produce one file from another. For example the makefile would spell out how to produce ballad.pdf and ballad.midi from ballad.ly by running LilyPond.

There are times when it is a good idea to create a Makefile for your project, either for your own convenience or as a courtesy to others who might have access to your source files. This is true for very large projects with many included files and different output options (e.g., full score, parts, conductor’s score, piano reduction, etc.), or for projects that require difficult commands to build them (such as lilypond-book projects). Makefiles vary greatly in complexity and flexibility, according to the needs and skills of the authors. The program GNU Make comes installed on GNU/Linux distributions and on macOS, and it is also available for Windows.

See the GNU Make Manual for full details on using make, as what follows here gives only a glimpse of what it can do.

The commands to define rules in a makefile differ according to platform; for instance the various forms of GNU/Linux and macOS use bash, while Windows uses cmd. Note that on macOS, you need to configure the system to use the command-line interpreter. Here are some example makefiles, with versions for both GNU/Linux/macOS and Windows.

The first example is for an orchestral work in four movements with a directory structure as follows:

Symphony/
|-- MIDI/
|-- Makefile
|-- Notes/
|   |-- cello.ily
|   |-- figures.ily
|   |-- horn.ily
|   |-- oboe.ily
|   |-- trioString.ily
|   |-- viola.ily
|   |-- violinOne.ily
|   `-- violinTwo.ily
|-- PDF/
|-- Parts/
|   |-- symphony-cello.ly
|   |-- symphony-horn.ly
|   |-- symphony-oboe.ly
|   |-- symphony-viola.ly
|   |-- symphony-violinOne.ly
|   `-- symphony-violinTwo.ly
|-- Scores/
|   |-- symphony.ly
|   |-- symphonyI.ly
|   |-- symphonyII.ly
|   |-- symphonyIII.ly
|   `-- symphonyIV.ly
`-- symphonyDefs.ily

The .ly files in the Scores and Parts directories get their notes from .ily files in the Notes directory:

%%% top of file "symphony-cello.ly"
\include "../symphonyDefs.ily"
\include "../Notes/cello.ily"

The makefile will have targets of score (entire piece in full score), movements (individual movements in full score), and parts (individual parts for performers). There is also a target archive that will create a tarball of the source files, suitable for sharing via web or email. Here is the makefile for GNU/Linux or macOS. It should be saved with the name Makefile in the top directory of the project:

Note: When a target or pattern rule is defined, the subsequent lines must begin with tabs, not spaces.

# the name stem of the output files
piece := symphony
# The command to run lilypond
LILY_CMD := lilypond -ddelete-intermediate-files \
                    -dno-point-and-click

# The suffixes used in this Makefile.
.SUFFIXES: .ly .ily .pdf .midi

.DEFAULT_GOAL := score

PDFDIR := PDF
MIDIDIR := MIDI

# Input and output files are searched in the directories listed in
# the VPATH variable.  All of them are subdirectories of the current
# directory (given by the GNU make variable `CURDIR`).
VPATH := \
  $(CURDIR)/Scores \
  $(CURDIR)/Parts \
  $(CURDIR)/Notes \
  $(CURDIR)/$(PDFDIR) \
  $(CURDIR)/$(MIDIDIR)

# The pattern rule to create PDF and MIDI files from a LY input file.
# The .pdf output files are put into the `PDF` subdirectory, and the
# .midi files go into the `MIDI` subdirectory.
%.pdf %.midi: %.ly | $(PDFDIR) $(MIDIDIR)
	$(LILY_CMD) $<          	# this line begins with a tab
	mv "$*.pdf" $(PDFDIR)/		# this line begins with a tab
	mv "$*.midi" $(MIDIDIR)/	# this line begins with a tab

$(PDFDIR):
	mkdir $(PDFDIR)

$(MIDIDIR):
	mkdir $(MIDIDIR)

common := symphonyDefs.ily

notes := \
  cello.ily \
  horn.ily \
  oboe.ily \
  viola.ily \
  violinOne.ily \
  violinTwo.ily

# The dependencies of the movements.
$(piece)I.pdf: $(piece)I.ly $(notes) $(common)
$(piece)II.pdf: $(piece)II.ly $(notes) $(common)
$(piece)III.pdf: $(piece)III.ly $(notes) $(common)
$(piece)IV.pdf: $(piece)IV.ly $(notes) $(common)

# The dependencies of the full score.
$(piece).pdf: $(piece).ly $(notes) $(common)

# The dependencies of the parts.
$(piece)-cello.pdf: $(piece)-cello.ly cello.ily $(common)
$(piece)-horn.pdf: $(piece)-horn.ly horn.ily $(common)
$(piece)-oboe.pdf: $(piece)-oboe.ly oboe.ily $(common)
$(piece)-viola.pdf: $(piece)-viola.ly viola.ily $(common)
$(piece)-violinOne.pdf: $(piece)-violinOne.ly violinOne.ily $(common)
$(piece)-violinTwo.pdf: $(piece)-violinTwo.ly violinTwo.ily $(common)

# Type `make score` to generate the full score of all four
# movements as one file.
.PHONY: score
score: $(piece).pdf

# Type `make parts` to generate all parts.
# Type `make symphony-foo.pdf` to generate the part for instrument 'foo'.
# Example: `make symphony-cello.pdf`.
.PHONY: parts
parts: $(piece)-cello.pdf \
       $(piece)-violinOne.pdf \
       $(piece)-violinTwo.pdf \
       $(piece)-viola.pdf \
       $(piece)-oboe.pdf \
       $(piece)-horn.pdf

# Type `make movements` to generate files for the
# four movements separately.
.PHONY: movements
movements: $(piece)I.pdf \
           $(piece)II.pdf \
           $(piece)III.pdf \
           $(piece)IV.pdf

all: score parts movements

There are special complications on the Windows platform. After downloading and installing GNU Make for Windows, you must set the correct path in the system’s environment variables so that the DOS shell can find the Make program. To do this, right-click on "My Computer," then choose Properties and Advanced. Click Environment Variables, and then in the System Variables pane, highlight Path, click edit, and add the path to the GNU Make executable file, which will look something like this:

C:\Program Files\GnuWin32\bin

The makefile itself has to be altered to handle different shell commands and to deal with spaces that are present in some default system directories. Windows also has a different default extension for midi files.

## WINDOWS VERSION
##
piece := symphony
LILY_CMD := lilypond -ddelete-intermediate-files \
                    -dno-point-and-click

#get the 8.3 name of CURDIR (workaround for spaces in PATH)
workdir := $(shell for /f "tokens=*" %%b in ("$(CURDIR)") \
          do @echo %%~sb)

.SUFFIXES: .ly .ily .pdf .mid

.DEFAULT_GOAL := score

PDFDIR := PDF
MIDIDIR := MIDI

VPATH := \
  $(workdir)/Scores \
  $(workdir)/Parts \
  $(workdir)/Notes \
  $(workdir)/$(PDFDIR) \
  $(workdir)/$(MIDIDIR)

%.pdf %.mid: %.ly | $(PDFDIR) $(MIDIDIR)
        $(LILY_CMD) $<			# this line begins with a tab
        move /Y "$*.pdf"  $(PDFDIR)/	# begin with tab
        move /Y "$*.mid" $(MIDIDIR)/	# begin with tab

$(PDFDIR):
    mkdir $(PDFDIR)/

$(MIDIDIR):
    mkdir $(MIDIDIR)/

notes := \
  cello.ily \
  figures.ily \
  horn.ily \
  oboe.ily \
  trioString.ily \
  viola.ily \
  violinOne.ily \
  violinTwo.ily

common := symphonyDefs.ily

$(piece)I.pdf: $(piece)I.ly $(notes) $(common)
$(piece)II.pdf: $(piece)II.ly $(notes) $(common)
$(piece)III.pdf: $(piece)III.ly $(notes) $(common)
$(piece)IV.pdf: $(piece)IV.ly $(notes) $(common)

$(piece).pdf: $(piece).ly $(notes) $(common)

$(piece)-cello.pdf: $(piece)-cello.ly cello.ily $(common)
$(piece)-horn.pdf: $(piece)-horn.ly horn.ily $(common)
$(piece)-oboe.pdf: $(piece)-oboe.ly oboe.ily $(common)
$(piece)-viola.pdf: $(piece)-viola.ly viola.ily $(common)
$(piece)-violinOne.pdf: $(piece)-violinOne.ly violinOne.ily $(common)
$(piece)-violinTwo.pdf: $(piece)-violinTwo.ly violinTwo.ily $(common)

.PHONY: score
score: $(piece).pdf

.PHONY: parts
parts: $(piece)-cello.pdf \
       $(piece)-violinOne.pdf \
       $(piece)-violinTwo.pdf \
       $(piece)-viola.pdf \
       $(piece)-oboe.pdf \
       $(piece)-horn.pdf

.PHONY: movements
movements: $(piece)I.pdf \
           $(piece)II.pdf \
           $(piece)III.pdf \
           $(piece)IV.pdf

all: score parts movements

The next Makefile is for a lilypond-book document done in LaTeX. This project has an index, which requires that the latex command be run twice to update links. Output files are all stored in the out directory for .pdf output and in the htmlout directory for the html output.

SHELL=/bin/sh
FILE=myproject
OUTDIR=out
WEBDIR=htmlout
VIEWER=acroread
BROWSER=firefox
LILYBOOK_PDF=lilypond-book --output=$(OUTDIR) --pdf $(FILE).lytex
LILYBOOK_HTML=lilypond-book --output=$(WEBDIR) $(FILE).lytex
PDF=cd $(OUTDIR) && pdflatex $(FILE)
HTML=cd $(WEBDIR) && latex2html $(FILE)
INDEX=cd $(OUTDIR) && makeindex $(FILE)
PREVIEW=$(VIEWER) $(OUTDIR)/$(FILE).pdf &

all: pdf web keep

pdf:
        $(LILYBOOK_PDF)  # begin with tab
        $(PDF)           # begin with tab
        $(INDEX)         # begin with tab
        $(PDF)           # begin with tab
        $(PREVIEW)       # begin with tab

web:
        $(LILYBOOK_HTML) # begin with tab
        $(HTML)          # begin with tab
        cp -R $(WEBDIR)/$(FILE)/ ./  # begin with tab
        $(BROWSER) $(FILE)/$(FILE).html &  # begin with tab

keep: pdf
        cp $(OUTDIR)/$(FILE).pdf $(FILE).pdf  # begin with tab

clean:
        rm -rf $(OUTDIR) # begin with tab

web-clean:
        rm -rf $(WEBDIR) # begin with tab

archive:
        tar -cvvf myproject.tar \ # begin this line with tab
        --exclude=out/* \
        --exclude=htmlout/* \
        --exclude=myproject/* \
        --exclude=*midi \
        --exclude=*pdf \
        --exclude=*~ \
        ../MyProject/*

TODO: make this thing work on Windows

The previous makefile does not work on Windows. An alternative for Windows users would be to create a simple batch file containing the build commands. This will not keep track of dependencies the way a makefile does, but it at least reduces the build process to a single command. Save the following code as build.bat or build.cmd. The batch file can be run at the DOS prompt or by simply double-clicking its icon.

lilypond-book --output=out --pdf myproject.lytex
cd out
pdflatex myproject
makeindex myproject
pdflatex myproject
cd ..
copy out\myproject.pdf MyProject.pdf

See also

This manual: Command-line usage, Running lilypond-book.


Appendix A GNU Free Documentation License

Version 1.3, 3 November 2008
Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
https://fsf.org/

Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
  1. PREAMBLE

    The purpose of this License is to make a manual, textbook, or other functional and useful document free in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

    This License is a kind of “copyleft”, which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

    We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.

  2. APPLICABILITY AND DEFINITIONS

    This License applies to any manual or other work, in any medium, that contains a notice placed by the copyright holder saying it can be distributed under the terms of this License. Such a notice grants a world-wide, royalty-free license, unlimited in duration, to use that work under the conditions stated herein. The “Document”, below, refers to any such manual or work. Any member of the public is a licensee, and is addressed as “you”. You accept the license if you copy, modify or distribute the work in a way requiring permission under copyright law.

    A “Modified Version” of the Document means any work containing the Document or a portion of it, either copied verbatim, or with modifications and/or translated into another language.

    A “Secondary Section” is a named appendix or a front-matter section of the Document that deals exclusively with the relationship of the publishers or authors of the Document to the Document’s overall subject (or to related matters) and contains nothing that could fall directly within that overall subject. (Thus, if the Document is in part a textbook of mathematics, a Secondary Section may not explain any mathematics.) The relationship could be a matter of historical connection with the subject or with related matters, or of legal, commercial, philosophical, ethical or political position regarding them.

    The “Invariant Sections” are certain Secondary Sections whose titles are designated, as being those of Invariant Sections, in the notice that says that the Document is released under this License. If a section does not fit the above definition of Secondary then it is not allowed to be designated as Invariant. The Document may contain zero Invariant Sections. If the Document does not identify any Invariant Sections then there are none.

    The “Cover Texts” are certain short passages of text that are listed, as Front-Cover Texts or Back-Cover Texts, in the notice that says that the Document is released under this License. A Front-Cover Text may be at most 5 words, and a Back-Cover Text may be at most 25 words.

    A “Transparent” copy of the Document means a machine-readable copy, represented in a format whose specification is available to the general public, that is suitable for revising the document straightforwardly with generic text editors or (for images composed of pixels) generic paint programs or (for drawings) some widely available drawing editor, and that is suitable for input to text formatters or for automatic translation to a variety of formats suitable for input to text formatters. A copy made in an otherwise Transparent file format whose markup, or absence of markup, has been arranged to thwart or discourage subsequent modification by readers is not Transparent. An image format is not Transparent if used for any substantial amount of text. A copy that is not “Transparent” is called “Opaque”.

    Examples of suitable formats for Transparent copies include plain ASCII without markup, Texinfo input format, LaTeX input format, SGML or XML using a publicly available DTD, and standard-conforming simple HTML, PostScript or PDF designed for human modification. Examples of transparent image formats include PNG, XCF and JPG. Opaque formats include proprietary formats that can be read and edited only by proprietary word processors, SGML or XML for which the DTD and/or processing tools are not generally available, and the machine-generated HTML, PostScript or PDF produced by some word processors for output purposes only.

    The “Title Page” means, for a printed book, the title page itself, plus such following pages as are needed to hold, legibly, the material this License requires to appear in the title page. For works in formats which do not have any title page as such, “Title Page” means the text near the most prominent appearance of the work’s title, preceding the beginning of the body of the text.

    The “publisher” means any person or entity that distributes copies of the Document to the public.

    A section “Entitled XYZ” means a named subunit of the Document whose title either is precisely XYZ or contains XYZ in parentheses following text that translates XYZ in another language. (Here XYZ stands for a specific section name mentioned below, such as “Acknowledgements”, “Dedications”, “Endorsements”, or “History”.) To “Preserve the Title” of such a section when you modify the Document means that it remains a section “Entitled XYZ” according to this definition.

    The Document may include Warranty Disclaimers next to the notice which states that this License applies to the Document. These Warranty Disclaimers are considered to be included by reference in this License, but only as regards disclaiming warranties: any other implication that these Warranty Disclaimers may have is void and has no effect on the meaning of this License.

  3. VERBATIM COPYING

    You may copy and distribute the Document in any medium, either commercially or noncommercially, provided that this License, the copyright notices, and the license notice saying this License applies to the Document are reproduced in all copies, and that you add no other conditions whatsoever to those of this License. You may not use technical measures to obstruct or control the reading or further copying of the copies you make or distribute. However, you may accept compensation in exchange for copies. If you distribute a large enough number of copies you must also follow the conditions in section 3.

    You may also lend copies, under the same conditions stated above, and you may publicly display copies.

  4. COPYING IN QUANTITY

    If you publish printed copies (or copies in media that commonly have printed covers) of the Document, numbering more than 100, and the Document’s license notice requires Cover Texts, you must enclose the copies in covers that carry, clearly and legibly, all these Cover Texts: Front-Cover Texts on the front cover, and Back-Cover Texts on the back cover. Both covers must also clearly and legibly identify you as the publisher of these copies. The front cover must present the full title with all words of the title equally prominent and visible. You may add other material on the covers in addition. Copying with changes limited to the covers, as long as they preserve the title of the Document and satisfy these conditions, can be treated as verbatim copying in other respects.

    If the required texts for either cover are too voluminous to fit legibly, you should put the first ones listed (as many as fit reasonably) on the actual cover, and continue the rest onto adjacent pages.

    If you publish or distribute Opaque copies of the Document numbering more than 100, you must either include a machine-readable Transparent copy along with each Opaque copy, or state in or with each Opaque copy a computer-network location from which the general network-using public has access to download using public-standard network protocols a complete Transparent copy of the Document, free of added material. If you use the latter option, you must take reasonably prudent steps, when you begin distribution of Opaque copies in quantity, to ensure that this Transparent copy will remain thus accessible at the stated location until at least one year after the last time you distribute an Opaque copy (directly or through your agents or retailers) of that edition to the public.

    It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document.

  5. MODIFICATIONS

    You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:

    1. Use in the Title Page (and on the covers, if any) a title distinct from that of the Document, and from those of previous versions (which should, if there were any, be listed in the History section of the Document). You may use the same title as a previous version if the original publisher of that version gives permission.
    2. List on the Title Page, as authors, one or more persons or entities responsible for authorship of the modifications in the Modified Version, together with at least five of the principal authors of the Document (all of its principal authors, if it has fewer than five), unless they release you from this requirement.
    3. State on the Title page the name of the publisher of the Modified Version, as the publisher.
    4. Preserve all the copyright notices of the Document.
    5. Add an appropriate copyright notice for your modifications adjacent to the other copyright notices.
    6. Include, immediately after the copyright notices, a license notice giving the public permission to use the Modified Version under the terms of this License, in the form shown in the Addendum below.
    7. Preserve in that license notice the full lists of Invariant Sections and required Cover Texts given in the Document’s license notice.
    8. Include an unaltered copy of this License.
    9. Preserve the section Entitled “History”, Preserve its Title, and add to it an item stating at least the title, year, new authors, and publisher of the Modified Version as given on the Title Page. If there is no section Entitled “History” in the Document, create one stating the title, year, authors, and publisher of the Document as given on its Title Page, then add an item describing the Modified Version as stated in the previous sentence.
    10. Preserve the network location, if any, given in the Document for public access to a Transparent copy of the Document, and likewise the network locations given in the Document for previous versions it was based on. These may be placed in the “History” section. You may omit a network location for a work that was published at least four years before the Document itself, or if the original publisher of the version it refers to gives permission.
    11. For any section Entitled “Acknowledgements” or “Dedications”, Preserve the Title of the section, and preserve in the section all the substance and tone of each of the contributor acknowledgements and/or dedications given therein.
    12. Preserve all the Invariant Sections of the Document, unaltered in their text and in their titles. Section numbers or the equivalent are not considered part of the section titles.
    13. Delete any section Entitled “Endorsements”. Such a section may not be included in the Modified Version.
    14. Do not retitle any existing section to be Entitled “Endorsements” or to conflict in title with any Invariant Section.
    15. Preserve any Warranty Disclaimers.

    If the Modified Version includes new front-matter sections or appendices that qualify as Secondary Sections and contain no material copied from the Document, you may at your option designate some or all of these sections as invariant. To do this, add their titles to the list of Invariant Sections in the Modified Version’s license notice. These titles must be distinct from any other section titles.

    You may add a section Entitled “Endorsements”, provided it contains nothing but endorsements of your Modified Version by various parties—for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.

    You may add a passage of up to five words as a Front-Cover Text, and a passage of up to 25 words as a Back-Cover Text, to the end of the list of Cover Texts in the Modified Version. Only one passage of Front-Cover Text and one of Back-Cover Text may be added by (or through arrangements made by) any one entity. If the Document already includes a cover text for the same cover, previously added by you or by arrangement made by the same entity you are acting on behalf of, you may not add another; but you may replace the old one, on explicit permission from the previous publisher that added the old one.

    The author(s) and publisher(s) of the Document do not by this License give permission to use their names for publicity for or to assert or imply endorsement of any Modified Version.

  6. COMBINING DOCUMENTS

    You may combine the Document with other documents released under this License, under the terms defined in section 4 above for modified versions, provided that you include in the combination all of the Invariant Sections of all of the original documents, unmodified, and list them all as Invariant Sections of your combined work in its license notice, and that you preserve all their Warranty Disclaimers.

    The combined work need only contain one copy of this License, and multiple identical Invariant Sections may be replaced with a single copy. If there are multiple Invariant Sections with the same name but different contents, make the title of each such section unique by adding at the end of it, in parentheses, the name of the original author or publisher of that section if known, or else a unique number. Make the same adjustment to the section titles in the list of Invariant Sections in the license notice of the combined work.

    In the combination, you must combine any sections Entitled “History” in the various original documents, forming one section Entitled “History”; likewise combine any sections Entitled “Acknowledgements”, and any sections Entitled “Dedications”. You must delete all sections Entitled “Endorsements.”

  7. COLLECTIONS OF DOCUMENTS

    You may make a collection consisting of the Document and other documents released under this License, and replace the individual copies of this License in the various documents with a single copy that is included in the collection, provided that you follow the rules of this License for verbatim copying of each of the documents in all other respects.

    You may extract a single document from such a collection, and distribute it individually under this License, provided you insert a copy of this License into the extracted document, and follow this License in all other respects regarding verbatim copying of that document.

  8. AGGREGATION WITH INDEPENDENT WORKS

    A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, is called an “aggregate” if the copyright resulting from the compilation is not used to limit the legal rights of the compilation’s users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in the aggregate which are not themselves derivative works of the Document.

    If the Cover Text requirement of section 3 is applicable to these copies of the Document, then if the Document is less than one half of the entire aggregate, the Document’s Cover Texts may be placed on covers that bracket the Document within the aggregate, or the electronic equivalent of covers if the Document is in electronic form. Otherwise they must appear on printed covers that bracket the whole aggregate.

  9. TRANSLATION

    Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail.

    If a section in the Document is Entitled “Acknowledgements”, “Dedications”, or “History”, the requirement (section 4) to Preserve its Title (section 1) will typically require changing the actual title.

  10. TERMINATION

    You may not copy, modify, sublicense, or distribute the Document except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense, or distribute it is void, and will automatically terminate your rights under this License.

    However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.

    Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.

    Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, receipt of a copy of some or all of the same material does not give you any rights to use it.

  11. FUTURE REVISIONS OF THIS LICENSE

    The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See https://www.gnu.org/licenses/.

    Each version of the License is given a distinguishing version number. If the Document specifies that a particular numbered version of this License “or any later version” applies to it, you have the option of following the terms and conditions either of that specified version or of any later version that has been published (not as a draft) by the Free Software Foundation. If the Document does not specify a version number of this License, you may choose any version ever published (not as a draft) by the Free Software Foundation. If the Document specifies that a proxy can decide which future versions of this License can be used, that proxy’s public statement of acceptance of a version permanently authorizes you to choose that version for the Document.

  12. RELICENSING

    “Massive Multiauthor Collaboration Site” (or “MMC Site”) means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A “Massive Multiauthor Collaboration” (or “MMC”) contained in the site means any set of copyrightable works thus published on the MMC site.

    “CC-BY-SA” means the Creative Commons Attribution-Share Alike 3.0 license published by Creative Commons Corporation, a not-for-profit corporation with a principal place of business in San Francisco, California, as well as future copyleft versions of that license published by that same organization.

    “Incorporate” means to publish or republish a Document, in whole or in part, as part of another Document.

    An MMC is “eligible for relicensing” if it is licensed under this License, and if all works that were first published under this License somewhere other than this MMC, and subsequently incorporated in whole or in part into the MMC, (1) had no cover texts or invariant sections, and (2) were thus incorporated prior to November 1, 2008.

    The operator of an MMC Site may republish an MMC contained in the site under CC-BY-SA on the same site at any time before August 1, 2009, provided the MMC is eligible for relicensing.

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If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.


Appendix B LilyPond index

Jump to:   A   C   D   E   F   H   I   L   M   O   P   Q   R   S   T   U   V   W  
Index Entry  Section

A
ABC 4.3.3 Invoking abc2ly
Aborted (core dumped) 1.3 Error messages
Articulate project 4.5.1 MIDI articulation

C
call trace 1.3 Error messages
chroot jail, running inside Basic command-line options for LilyPond
Coda Technology 4.3.4 Invoking etf2ly
coloring, syntax 4.2 Text editor support
command-line options for lilypond Basic command-line options for LilyPond
convert-ly 2 Updating files with convert-ly
convert-ly 2.1 Why does the syntax change?

D
directory, redirect output Basic command-line options for LilyPond
docbook 3 Running lilypond-book
DocBook, adding music 3 Running lilypond-book
documents, adding music 3 Running lilypond-book
dvips 3.4 Invoking lilypond-book

E
editors 4.2 Text editor support
emacs 4.2 Text editor support
enigma 4.3.4 Invoking etf2ly
Enigma Transport Format 4.3.4 Invoking etf2ly
error 1.3 Error messages
error messages 1.3 Error messages
errors, message format 1.3 Error messages
ETF 4.3.4 Invoking etf2ly
Evince Extra configuration for Evince
expression evaluation, Scheme Basic command-line options for LilyPond
External programs, generating LilyPond files 4.3.5 Other formats

F
fatal error 1.3 Error messages
file searching Basic command-line options for LilyPond
file size, output Enabling point and click
Finale 4.3.4 Invoking etf2ly
format, output Basic command-line options for LilyPond
fragments, music 4.4.4 Other programs

H
\header in LaTeX documents 3.2.1 LaTeX
HTML 3 Running lilypond-book
HTML, adding music 3 Running lilypond-book
HTML, embeddable SVG scores Basic command-line options for LilyPond

I
invoking dvips 3.4 Invoking lilypond-book
Invoking lilypond Basic command-line options for LilyPond

L
LANG Environment variables
LaTeX 3 Running lilypond-book
LaTeX, adding music 3 Running lilypond-book
LibreOffice.org 4.4.2 OpenOffice and LibreOffice
LILYPOND_DATADIR Environment variables
LILYPOND_LOCALEDIR Environment variables
LILYPOND_LOGLEVEL Environment variables
LILYPOND_RELOCDIR Environment variables
loglevel Basic command-line options for LilyPond
LuaTeX 4.4.1 LuaTeX
ly2video 4.4.3 ly2video
lyluatex 4.4.1 LuaTeX

M
make 5.5 Make and Makefiles
makefiles 5.5 Make and Makefiles
MIDI 4.3.1 Invoking midi2ly
MIDI 4.5.1 MIDI articulation
MIDI, synchronized video 4.4.3 ly2video
modes, editor 4.2 Text editor support
music fragments, quoting 4.4.4 Other programs
musicology 3.1 An example of a musicological document
MusicXML 4.3.2 Invoking musicxml2ly

O
OOoLilyPond 4.4.2 OpenOffice and LibreOffice
OpenOffice.org 4.4.2 OpenOffice and LibreOffice
options, command line Basic command-line options for LilyPond
outline fonts 3.4 Invoking lilypond-book
output, directory Basic command-line options for LilyPond
output, format Basic command-line options for LilyPond
output, PDF (Portable Document Format) Basic command-line options for LilyPond
output, PNG (Portable Network Graphics) Basic command-line options for LilyPond
output, PS (PostScript) Basic command-line options for LilyPond
output, setting file name Basic command-line options for LilyPond
output, SVG (Scalable Vector Graphics) Basic command-line options for LilyPond
output, verbosity Basic command-line options for LilyPond

P
PDF (Portable Document Format), output Basic command-line options for LilyPond
PNG (Portable Network Graphics), output Basic command-line options for LilyPond
point and click 4.1 Point and click
point and click, command line Advanced command-line options for LilyPond
PostScript (PS), output Basic command-line options for LilyPond
preview image 3.2.3 HTML
Programming error 1.3 Error messages
PS (PostScript), output Basic command-line options for LilyPond
pspdfopt Basic command-line options for LilyPond

Q
quoting, music fragments 4.4.4 Other programs

R
relocation Relocation

S
Scheme error 1.3 Error messages
Scheme, expression evaluation Basic command-line options for LilyPond
score, creating videos 4.4.3 ly2video
search path Basic command-line options for LilyPond
SVG (Scalable Vector Graphics), output Basic command-line options for LilyPond
switches Basic command-line options for LilyPond
syntax coloring 4.2 Text editor support

T
texi 3 Running lilypond-book
texinfo 3 Running lilypond-book
texinfo 3 Running lilypond-book
Texinfo, adding music 3 Running lilypond-book
thumbnail 3.2.3 HTML
titling and lilypond-book 3.2.1 LaTeX
titling in HTML 3.2.3 HTML
trace, Scheme 1.3 Error messages
type1 fonts 3.4 Invoking lilypond-book

U
Updating a LilyPond file 2 Updating files with convert-ly
updating old input files 2.1 Why does the syntax change?

V
videos, with scrolling score 4.4.3 ly2video
vim 4.2 Text editor support

W
warning 1.3 Error messages
web pages, SVG scores embeddable Basic command-line options for LilyPond

Jump to:   A   C   D   E   F   H   I   L   M   O   P   Q   R   S   T   U   V   W  

Table of Contents


Footnotes

(1)

The status of Guile is not reset after processing a .ly file, so be careful not to change any system defaults from within Scheme.

(2)

Note that steps 1 and 2 must be done using the default command prompt, cmd.exe, and not using PowerShell!

(3)

At least, this is possible in any LilyPond file that does not contain Scheme code. Otherwise the LilyPond file contains a Turing-complete language, and we run into problems with the famous “Halting Problem” in computer science.

(4)

This tutorial is processed with Texinfo, so the example gives slightly different results in layout.

(5)

This is necessary because lilypond-book adds \usepackage{graphics} to the preamble if neither the graphics nor the graphicx package gets loaded; this might change the paper dimensions unexpectedly for some document classes.

(6)

Note that pdfLaTeX and LaTeX may not be both usable to compile any LaTeX document, that is why we explain the two ways.

LilyPond Application Usage v2.25.20 (development-branch).