Comment by CharlesW

https://en.wikipedia.org/wiki/MusicBrainz

”MusicBrainz was founded in response to the restrictions placed on the Compact Disc Database (CDDB), a database for software applications to look up audio CD information on the Internet. MusicBrainz has expanded its goals to reach beyond a CD metadata (information about the performers, artists, songwriters, etc.) storehouse to become a structured online database for music.”

More detail here: https://courses.cs.umbc.edu/771/papers/ieeeIntelligentSystem...