” OpenSong is a free, open-source software application created to manage lyrics, chords, lead sheets, overheads, computer projection, and more. OpenSong releases are available for Microsoft Windows, Mac OSX, and Linux operating systems.”
Powerful free on-line music notation editor. The Noteflight Score Editor is a full-featured application that displays, edits, prints and plays back music notation in any standard web browser. You can create your own scores, choose to share them with others, or publish them to Noteflight’s browsable, searchable online library of music. And it doesn’t cost a thing: Noteflight.com is free for individual use.
Press here to enter NoteFlight