Flowkey - The easiest way to learn piano with your iPhone or iPad
SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
keezy - A colorful soundboard. Play with music.
Real Piano Teacher - Real Piano Teacher is a music learning application that lets you learn how to play the piano, organ, flute, Guitar, and many other instruments just in seven days.
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.