Open source Music notation

Denemo

Denemo is a free software music notation editor for GNU/Linux, Mac OSX and MS Windows that lets you rapidly enter notation for typesetting via the LilyPond music engraver. You can compose, transcribe, arrange, listen to the music and much more. (GPL)

Linux - Windows

Frescobaldi

Frescobaldi is a LilyPond sheet music text editor for KDE4. It aims to be powerful, yet lightweight and easy to use. There are some other nice tools such as a built-in MIDI player, a terminal and a blank staff paper generator. (GPL)

Linux - FreeBSD

LilyPond

LilyPond is an automated engraving system. (GPL)

Linux - FreeBSD - Windows

MuseScore

MuseScore is a free cross platform WYSIWYG music notation program. (GPL)

Linux - Windows

TuxGuitar

TuxGuitar is a Multitrack tablature editor and player. (LGPL)

Linux - FreeBSD - Windows - MAC OS X

5 applications