MuseScore is a free cross platform WYSIWYG music notation program, licensed under GNU GPL.
- WYSIWYG, notes are entered on a "virtual note sheet"
- Unlimited number of staves
- Up to four voices per staff
- Easy and fast note entry with mouse, keyboard or MIDI
- Audio playback of the score
- Import and export of MusicXML and standard MIDI files
- Available in 50 languages
Note: Now requires OS X 10.7 or later.
- Playback of trills and other ornaments as well as glissandi and bends, with controls to customize or disable the effect
- New templates: various classical chamber groups, vocal ensembles, orchestras, and concert band
- Palette improvements: clefs, key signatures, time signatures, lines, more...
- OS X 10.7 or later