ProgrammableWeb lists many popular Music APIs in the directory including Last.fm, 7digital and Spotify Metadata. This post features a few really creative, entertaining mashups that use a few popular Music APIs.
For music fans and concert goers, having instant access to information on which bands are playing where is definitely a plus. Being in the know and never missing out when it comes to great gigs in your area is even better. In comes new Facebook mashup, Fanbible; a live music event guide that works on android, iPhone, iPad and desktop browsers, keeping users informed even when they're on the go.