Sword of Xolan - Sword of Xolan is a Marvelous, Action, Side-Scroll, Platform, and Single-player video game created and published by Alper Sarikaya.
Flowkey - The easiest way to learn piano with your iPhone or iPad
Granny Smith - Granny Smith is an Addictive, Action, Puzzle-Platform, Side-Scroll, and Single-player video game developed and published by Medicore.
Yousician - Learn to play music at home, at your own pace
Megatroid - Megatroid is a gorgeous, Action-Adventure, Puzzle-platform, Side-scroll, Sci-fi, and Single-player video game developed and published by Triolith Entertainment AB.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.