Mutronome for iOS - Practice drums with Apple Music
Simply Piano - Fast and fun way to learn piano
Keezy Drummer - Make a beat in seconds
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
Auxy Music Studio - Auxy brings real music creation to iPhone in a simple and inspiring format.
Yousician - Learn to play music at home, at your own pace