gmidimonitor
Jun 4, 2013 - v3.6.1.01Audio/Midi
QMidiArp
Nov 8, 2016 - v0.6.4.0Audio/Midi
AlsaModularSynth
Unrated.
Jun 6, 2017 - v2.1.1.4Audio
QmidiCtl
May 26, 2013 - v0.1.0.01Audio
Gnome Music Player Client
Unrated.
Jan 10, 2015 - v11.8.1.1Audio/Player
Simple Sysexxer
Jun 4, 2013 - v0.3.0.01Audio/Midi
Qsynth
Apr 13, 2014 - v0.3.8.1Audio
Non Sequencer
Nov 1, 2013 - v1.9.5.1Audio/Midi
QXGEdit
Unrated.
May 25, 2013 - v0.1.1.01Audio
squeezeNjive-lite
Jun 20, 2018 - v0.0.1.2Audio/Player