I’m not sure that we’ve talked about this cool project yet, so I’ll catch up on that now. The new site Six Degrees of Vince Gill allows you to enter an artist name and see how many degrees of separation there are between your artist and Vince Gill. This project comes from Universal Music’ Nashville group — I’m happy to see our data get used in interesting ways like this!
Now, if you want to see someone relate to Vince Gill in seven degrees, have a look at how I relate to him. 🙂
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MetaBrainz Blog 
It’s really great site, indeed! 🙂
And you can try any artists, not only Vince Gil!
It’s nice they did not lock the search to him.
PS. http://forums.musicbrainz.org/viewtopic.php?id=6272 😉
Very cool. I’d love to see a tool like this integrated with MB.
The code for this was originally created by Paul Lamere and it open source. If someone wants to submit a pull request. http://static.echonest.com/SixDegreesOfBlackSabbath/