Angle Audio - Live audio conversations as a service
Flowkey - The easiest way to learn piano with your iPhone or iPad
Noor - Chat like you're in the office together
Yousician - Learn to play music at home, at your own pace
Orbital - Orbital is an Arcade, Puzzle and Single-player video game created by Bitforge Ltd.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.