tonestro - Practice & improve on your wind instrument while having fun
Musicope - The Piano Game. Contribute to oldrich-s/musicope development by creating an account on GitHub.
Flat - Online collaborative music score and tab editor, accessible from any device
Playground Sessions - Online piano learning game.
Transposr - A free and simple way to transpose your sheet music or MP3.
Synthesia - A fun way to learn how to play the piano.