Flowkey - The easiest way to learn piano with your iPhone or iPad

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.

Touch Pianist - Play piano like a pro without playing piano.

Orange Pi - It’s an open-source single-board computer. It can run Android 4.

Pianu - Learn to play the piano in your browser.

Odroid - The Odroid is a series of single-board computers and tablet computers created by Hardkernel Co.