4 By putting the output of
5 @code{lilypond-version} into a lyric, it is possible to print the
6 version number of LilyPond in a score, or in a document generated
7 with @code{lilypond-book}. Another possibility is to append the
8 version number to the doc-string, in this manner:
11 \score { \context Lyrics {
12 \override Score.RehearsalMark #'self-alignment-X = #LEFT
13 \mark #(ly:export (string-append "Processed with LilyPond version " (lilypond-version)))