For many years I’ve espoused MusicBrainz should collect enough information that would allow us to track connections between disparate artists through a game of six degrees of separation. And now Paul Lamere from the EchoNest has done exactly this for Music Hack Day San Francisco.
Six degrees of Black Sabbath allows you to enter two artists and it will search the MusicBrainz advanced relationships to find a connection between your two artists. See Paul’s blog post for more details.
Very very cool to see interesting applications like this appear in the MusicBrainz ecosystem!