LilyPond is a program which converts music definition files into visual or auditive output: it can typeset formatted sheet music to a TeX file and (mechanical) performances to MIDI files. Features include multiple staffs, meters, clefs, keys, lyrics, versatile input-language, cadenzas beams, slurs and triplets.

Changes in v2.19.11

• Various enhancements
• Work in progress version
• Some new features may be incomplete

Changes in v2.18

• Adjusted item positioning using their actual outline rather than a rectangular bounding box.
• Sets and overrides can now use the syntax \override Voice.TextSpanner.bound-details.left.text = "rit."
• Triplets with a given group length can now be written as \tuplet 3/2 4 { c8 c c c c c }

Changes in v2.17.14

• Put span bars back where they should be
• Various enhancements
• More bugfixes

Changes in v2.17.11.

• Various bugfixes and enhancements
• Some new features that are work in progress
• Stable version is 2.16

Changes in v2.15.42.

• Maintenance update with bugfixes

Changes in v2.15.40.

• Various bugfixes
• Critical bug fixes