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Score

This is the top level notation context. No other context can contain a Score context. This context handles the administration of time signatures. It also makes sure that items such as clefs, time signatures, and key-signatures are aligned across staves.

You cannot explicitly instantiate a Score context (since it is not contained in any other context). It is instantiated automatically when an output definition (a \score or \paper block) is processed.

This context is also known as:

Timing

This context creates the following grobs:

Arpeggio, BarNumber, BreakAlignGroup, BreakAlignment, LeftEdge, MetronomeMark, NonMusicalPaperColumn, PaperColumn, RehearsalMark, SpacingSpanner, SystemStartBar, SystemStartBrace, SystemStartBracket, System and VerticalAlignment.

This context sets the following properties:

Context Score can contain FiguredBass, NoteNames, PianoStaff, ChoirStaff, GrandStaff, ChordNames, Lyrics, RhythmicStaff, StaffGroup, StaffContainer, GregorianTranscriptionStaff, VaticanaStaff, TabStaff and Staff

This context is built from the following engravers:

Score_engraver
Top level engraver. Takes care of generating columns and the complete system (ie. System)

This engraver decides whether a column is breakable. The default is that a column is always breakable. However, when every Bar_engraver that does not have a barline at a certain point will call Score_engraver::forbid_breaks to stop linebreaks. In practice, this means that you can make a breakpoint by creating a barline (assuming that there are no beams or notes that prevent a breakpoint.)

Music types accepted:

break-event

Properties (read)

currentCommandColumn (grob (GRaphical OBject))
Grob that is X-parent to all current breakable (clef, key signature, etc.) items.
currentMusicalColumn (grob (GRaphical OBject))
Grob that is X-parent to all non-breakable items (note heads, lyrics, etc.).
This engraver creates the following grobs: NonMusicalPaperColumn, PaperColumn and System.
Span_arpeggio_engraver

Properties (read)

connectArpeggios (boolean)
If set, connect all arpeggios that are found. In this way, you can make arpeggios that cross staves.
This engraver creates the following grobs: Arpeggio.
Bar_number_engraver
A bar number is created whenever measurePosition is zero. It is put on top of all staves, and appears only at left side of the staff.

Properties (read)

barNumberVisibility (procedure)
Procedure that takes an int and returns whether the corresponding bar number should be printed
stavesFound (list)
list of all staff-symbols found.
currentBarNumber (integer)
Contains the current barnumber. This property is incremented at every barline.
This engraver creates the following grobs: BarNumber.
Lyric_phrasing_engraver
This engraver combines note heads and lyrics for alignment.

This engraver is switched on by default. Turn it off for faster processing of orchestral scores.

Properties (read)

phrasingPunctuation (string)
A string of characters that are considered lyric punctuation
associatedVoice (string)
Name of the Voice that has the melody for this LyricsVoice.
melismaEngraverBusy (boolean)
See melismaBusy. This is set automatically.
automaticPhrasing (boolean)
If set, the Lyric_phrasing_engraver will match note heads of context called Voice X to syllables from LyricsVoice called X-<something>. This feature is turned on by default. See the example file lyrics-multi-stanza.ly.

Vertical_align_engraver
Catch Vertical axis groups and stack them.

This engraver creates the following grobs: VerticalAlignment.

Spacing_engraver
make a SpacingSpanner and do bookkeeping of shortest starting and playing notes

This engraver creates the following grobs: SpacingSpanner.

Break_align_engraver
Align grobs with corresponding break-align-symbols into groups, and order the groups according to breakAlignOrder

Properties (read)

breakAlignOrder (list)
Defines the order in which prefatory matter (clefs, key signatures) appears, eg. this puts the key signatures after the bar lines: 
               	\property Score.breakAlignOrder = #'(
               	  span-bar
               	  breathing-sign
               	  clef
               	  staff-bar
               	  key
               	  time-signature
               	)
This engraver creates the following grobs: BreakAlignGroup, BreakAlignment and LeftEdge.
Metronome_mark_engraver
Engrave metro nome marking. This delegates the real work to the function in the metronomeMarkFormatter property

Music types accepted:

metronome-change-event

Properties (read)

metronomeMarkFormatter (procedure)
How to produce a metronome markup. Called with 2 arguments, event and context.
stavesFound (list)
list of all staff-symbols found.
This engraver creates the following grobs: MetronomeMark.
Mark_engraver

Music types accepted:

mark-event

Properties (read)

stavesFound (list)
list of all staff-symbols found.
rehearsalMark (number or string)
The last rehearsal mark printed.
This engraver creates the following grobs: RehearsalMark.
System_start_delimiter_engraver
Creates a system start delimiter (ie. SystemStart{Bar,Brace,Bracket} spanner

Properties (read)

systemStartDelimiter (symbol)
Which grob to make for the start of the system/staff?
This engraver creates the following grobs: SystemStartBar, SystemStartBrace and SystemStartBracket.
Output_property_engraver
Interpret Music of Output_property type, and apply a function to any Graphic objects that satisfies the predicate.

Music types accepted:

layout-instruction

Timing_engraver
Responsible for synchronizing timing information from staves. Normally in Score. In order to create polyrhythmic music, this engraver should be removed from Score and placed in Staff.

Properties (read)

currentBarNumber (integer)
Contains the current barnumber. This property is incremented at every barline.
measurePosition (moment)
How much of the current measure (measured in whole notes) have we had. This can be set manually to create incomplete measures (anacrusis, upbeat), the start of the music.
measureLength (moment)
Length of one measure in the current time signature last?
timing (boolean)
Keep administration of measure length, position, bar number, etc? Switch off for cadenzas.
skipBars (boolean)
If set to true, then skip the empty bars that are produced by multimeasure notes and rests. These bars will not appear on the printed output. If not set (the default) multimeasure notes and rests expand into their full length, printing the appropriate number of empty bars so that synchronization with other voices is preserved. 
               @lilypond[fragment,verbatim,center]
               r1 r1*3 R1*3  \\property Score.skipBars= ##t r1*3 R1*3
               
               @end lilypond

defaultBarType (string)
Sets the default type of bar line. Available bar types: [FIXME];

This variable is typically read at Score level, so overriding Staff.defaultBarType will have no effect.

barAlways (boolean)
If set to true a bar line is drawn after each note.
whichBar (string)
This property is read to determine what type of barline to create.

Example: 

               \property Staff.whichBar = "|:"

This will create a start-repeat bar in this staff only.

If not set explicitly (by property or \bar), this is set according to values of defaultBarType, barAlways, barNonAuto and measurePosition.

Valid values are described in (lilypond-internals)bar-line-interface.

.

automaticBars (boolean)
If set to true then bar lines will not be printed automatically; they must be explicitly created with bar keywords. Unlike with the cadenza keyword, measures are still counted. Bar generation will resume according to that count if this property is set to zero.
timeSignatureFraction (pair of numbers)
pair of numbers, signifying the time signature. For example #'(4 . 4) is a 4/4time signature.

Staff_collecting_engraver
Maintain the stavesFound variable

Properties (read)

stavesFound (list)
list of all staff-symbols found.
Properties (write)
stavesFound (list)
list of all staff-symbols found.

Repeat_acknowledge_engraver
Acknowledge repeated music, and convert the contents of repeatCommands ainto an appropriate setting for whichBar.

Properties (read)

whichBar (string)
This property is read to determine what type of barline to create.

Example: 

               \property Staff.whichBar = "|:"

This will create a start-repeat bar in this staff only.

If not set explicitly (by property or \bar), this is set according to values of defaultBarType, barAlways, barNonAuto and measurePosition.

Valid values are described in (lilypond-internals)bar-line-interface.

.

repeatCommands (list)
This property is read to find any command of the form (volta . X), where X is a string or #f

This page is for LilyPond-2.0.3 (stable-branch).
Report errors to <bug-lilypond@gnu.org>.