TweetTunes is a fairly simple application. It has a database of artists. Every once in a while, it will search Twitter for recent tweets about the artist. It then uses this information to create a list of recent tweets and a few statistics about the artist. There is a little more that goes into it, though. TweetTunes will automatically filter out any tweets that aren’t relevant to the artist or band. This is in beta stage, so it isn’t perfect quite yet.
TweetTunes also uses Last.fm to get information about the bands and artists that it displays. The artist description and top albums/tracks information that you see on an artist’s page are provided by Last.fm.