Canorus

Canorus is a free next generation cross-platform music score editor

written in Qt4. It is a sequel of the well-known music score editor

for Linux, NoteEdit.

Canorus supports Python and Ruby scripting languages for plugins, a

fast and straight-forward user interface, source view of the score,

a number of import and export filters for LilyPond, MusicXML,

NoteEdit and others.