Raspberry Pi - The Raspberry Pi is a tiny and affordable computer that you can use to learn programming through fun, practical projects. Join the global Raspberry Pi community.
Flowkey - The easiest way to learn piano with your iPhone or iPad
Microbit - BBC's handheld, programmable computer given free to UK kids
Yousician - Learn to play music at home, at your own pace
OLinuXino - Open Source Software and Open Source Hardware, low cost Linux Industrial grade single board...
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.