In the percent
style, a note pattern can be repeated. It is
printed once, and then the pattern is replaced with a special sign.
Patterns of a one and two measures are replaced by percent-like signs,
patterns that divide the measure length are replaced by slashes:
\context Voice { \repeat "percent" 4 { c'4 } \repeat "percent" 2 { c'2 es'2 f'4 fis'4 g'4 c''4 } }
This page is for LilyPond-2.0.1 (stable-branch).