La Touche Musicale allows you to learn the songs you love on piano. Connect your MIDI keyboard to your device and learn very quickly.
Flowkey - The easiest way to learn piano with your iPhone or iPad
Jameasy for Violin - Play rhythm game with a real violin. you can play with background music and real-time feedback
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
alphaTab - alphaTab is a cross platform music notation and guitar tablature rendering library.
Synthesia - A fun way to learn how to play the piano.
Simply Piano - Fast and fun way to learn piano