Flowkey - The easiest way to learn piano with your iPhone or iPad
Touch Bar Nyancat - Nyancat on your MacBook Pro's Touch Bar #innovation
Yousician - Learn to play music at home, at your own pace
Pock - Display the macOS Dock in your Touch Bar
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
Joytunes - Learn music through mobile games