OnlinePianist - OnlinePianist is a piano learning app by OnlinePianist.
ChordU - Extracts chords from any song, integrated YouTube.
La Touche Musicale - With La Touche Musicale, you can learn piano online easily with the songs you love. Discover a fun and effective learning method to progress very quickly.
Guitaa.com - Turn ANY song into chords, play along with interactive chords and diagram, transpose, loop, tempo control.
Piano Tutor - Piano Tutor is a companion app to help users in learning their music lessons with four attractive modes to choose from.
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.