The MusicBrainz database contains a huge amount of music metadata, which is maintained by the MusicBrainz community. Find information about artists, albums, tracks and labels. Mash the data with your web app, media player, CD ripper, tagger or other applications requiring music metadata. The service's architecture follows the REST design principles. Interaction with the web service is done using HTTP and all content is served in a simple but flexible XML format.