Flowkey - The easiest way to learn piano with your iPhone or iPad
Melodics - Melodics is a desktop app that teaches you to play MIDI keyboards, pad controllers, and drums.
Piano Lessons - Piano Lessons is one of the reliable libraries of online piano lessons provided by world-class instructors, making you learn or practice with the musical instrument without any hassle.
Simply Piano - Fast and fun way to learn piano
HDpiano - HDpiano is the Netflix of Piano Tutorials.
Learn to play Guitar - Learn to play Guitar is an application that is designed to learn or play various guitar tones like Rock, Blues, Jazz, Latin music, and other contemporary styles on Guitar.