For questions about usage of LilyPond, the free music engraving program. Code formatting on this site is not intended for LilyPond; workarounds can be found on meta. Questions may also necessitate the notation and/or engraving tags.

LilyPond is a free music engraving program, part of the GNU Project. Examples of scores written in LilyPond can be found here.

Please see this answer for formatting information.