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!
Thanks Paul!
MetaBrainz Blog 
hehe, that is really cool I love it
Here is an even better version (thanks to rexroom!).
I love looking at those improbable links between artists so far away together!
Hey why doesn’t it finds all artists?
It doesn’t find this existing in DB since at least 2005 “bodyslam” artist.
(I don’t give link because it triggers moderation)