+ LilyPond supports many forms of music notation constructs, including
+ chord names, drum notation, figured bass, grace notes, guitar tablature,
+ modern notation (cluster notation and rhythmic grouping), tremolos,
+ (nested) tuplets in arbitrary ratios, and more.
+ .
+ LilyPond's text-based music input language support can integrate into
+ LaTeX, HTML and Texinfo seemlessly, allowing single sheet music
+ or musicological treatises to be written from a single source. Form and
+ content are separate, and with LilyPond's expert automated formatting,
+ users don't need typographical expertise to produce good notation.
+ .
+ LilyPond produces PDF, PostScript, SVG or TeX printed output, as well
+ as MIDI for listening pleasures. LilyPond is exported from the
+ RoseGarden and NoteEdit GUIs, and can import ABC, ETF and MIDI.
+ .
+ LilyPond is part of the GNU Project.
+ .
+ Home Page: http://lilypond.org/