musescore.org
makemusic.com
sibelius.com
finalemusic.com
musicaleditor.com
noteworthysoftware.com
notation.com
music-notation-software.com
notionmusic.com
lyx.org
nvu.com
notepad-plus-plus.org
kompozer.net
jedit.org
avidemux.org
kdenlive.org
scintilla.org
jubler.org
openmovieeditor.org
openshotvideo.com
editra.org
texniccenter.org
pinta-project.com
jahshaka.org
kinodv.org
goldwave.com
wavosaur.com
music-editor.net
goplayalong.com
drumscore.com
noteflight.com
scorio.com
songsnote.com
readsheetmusic.info
subsonic.org
getsongbird.com
songbirdnest.com
sbooth.org
vorbis.com
tomahawk-player.org
clementine-player.org
hydrogen-music.org
atunes.org
musicreader.net
sibeliusblog.com
bean-osx.com
thingamablog.com
emeraldeditor.com
wave-editor.com
linuxaudio.org