• http://lilypond.org/

• https://github.com/lilypond/lilypond

• http://lilybin.com/

• Sheet music library

Projects

• https://github.com/ciconia/ripple

• https://github.com/aspiers/ly2video

• https://github.com/veltzer/openbook

• https://github.com/music-suite/music-suite

• https://github.com/lewj85/PocketBach

• https://github.com/babysnakes/Bach---Cello-Suites