1 Scheme tutorial
LilyPond uses the Scheme programming language, both as part of the
input syntax and as the internal mechanism to glue modules of the
program together. This section is a very brief overview of
entering data in Scheme. If you want to know more about Scheme in
general, see https://www.schemers.org.
LilyPond uses the GNU Guile implementation of Scheme, which is
based on the Scheme “R5RS” standard. If you are learning
Scheme to use with LilyPond, working with a different
implementation (or referring to a different standard) is not
recommended. The Guile Reference Manual can be found at
https://www.gnu.org/software/guile/manual/html_node/index.html;
this should be the first reference to look up. The “R5RS”
Scheme standard itself is located at
https://www.schemers.org/Documents/Standards/R5RS/.