Musicope - The Piano Game. Contribute to oldrich-s/musicope development by creating an account on GitHub.
EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
Playground Sessions - Online piano learning game.
Meludia - Listening exercises and to sharpen your ear and music theory skills
Synthesia - A fun way to learn how to play the piano.
LenMus - LenMus is a free program for learning music.