MuseScore
Dec 27, 2015 - v1.3.0.2Audio/Midi
Qtractor
Jun 1, 2017 - v0.8.1.1Audio
Record
Dec 23, 2013 - v1.2.3.3Audio
GoatTracker
Feb 9, 2012 - v2.71.0.0Audio
Mixxx
Dec 27, 2015 - v1.10.1.5Audio
Pogo Music Player
Nov 12, 2012 - v0.8.0.02Audio/Player
Virtual Midi Piano Keyboard
Jun 3, 2017 - v0.5.1.6Audio/Player
BlindPlayer
Nov 17, 2014 - v0.1.0.1Audio/Player
LMMS
Apr 12, 2015 - v1.1.3.1Audio/Midi
Flite
May 8, 2012 - v1.4.0.3multiple