EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
keezy - A colorful soundboard. Play with music.
GNU Solfege - GNU Solfege is free music education software.
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
ToneScholar - Train your ears and improve your musicianship with the best functional ear training app for musicians
Aftertouch - Aftertouch – 3D MIDI Controller created and published by Kevin Nelson.