ChordIQ - Learn notes, chords, sight reading, perfect pitch and more.
muted.io - A magical collection of interactive music theory tools & visual reference pages for musicians and music producers
ChordPic - Create beautiful guitar chord diagrams
Chordify - Chordify turns any music or song (YouTube, Deezer, SoundCloud, MP3) into chords.
Chord Generator - Used to draw guitar chord images.
Hyperlax - Sit back. Relax. Explore faraway places. Enjoy the music.