ChordIQ - Learn notes, chords, sight reading, perfect pitch and more.

Bandlab - Capture, nurture, and collaborate on song ideas in the cloud

muted.io - A magical collection of interactive music theory tools & visual reference pages for musicians and music producers

Turntable.fm - Turntable.fm is a social media website developed by Billy Chasen and Seth Goldstein that allows the audience to stream their own music.

7Pad Scales and chords - Music instrument and assistant for playing scales and chords.

indiesound - indiesound is a multi-tasking platform developed for online music streaming, helping you to discover, listen and connect with thousands of indie bands or music artists all around the world.