Schematic showing the components of the
CDDB. Note the evolution in the institutional structure.
Originally following the model of
CDDB, which was designed to handle pop/rock music in a now-typical artist/release/title structure, MusicBrainz has developed various iterations for handling classical music, though for the time being still shoehorns classical music into that structure.
It also has a broadband connection for accessing song names from the
CDDB archive or playing internet radio.
Initially called
CDDB, but now renamed Gracenote, this database is the source of the track listings that appear when you insert a CD into your computer.