[joelverhagen]

Out of curiosity, where do you get your album and artist information (http://tunesicles.com/autocomplete/daft%20punk, for example)? It looks like you are using MusicBrainz and Last.fm in your "About" modal.

Have you found you need to take an aggregate of the two?

How does the quality and completeness of each database compare?

[Jonovono]

Yes so if you do a search you will see that there is an option for "view top songs". That data comes from last.fm. Everything else comes from musicbrainz (http://musicbrainz.org/). I have fount that service pretty complete. There are a few others but MB is pretty large and has a good API.