Flowkey - The easiest way to learn piano with your iPhone or iPad
Badanamu Alphabet Talk and Trace - Badanamu Alphabet Talk and Trace is an app that allows children from 0-7 to learn the alphabet.
Yousician - Learn to play music at home, at your own pace
Sesame Street Alphabet Kitchen - Entertaining vocabulary-building app to help children with early literacy skills.
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
ABC Kids - Fun, tracing and phonics app to teach kids the English alphabet.