Grooveshark.com has partnered with production teams SMKA and The Royal Flush for the upcoming mixtape, Stankonia Sessions – A3C Edition.

Here’s an inside look at the creation of the track “Heaven’s Door” which features Joe Scudda, Termanology, Jon Connor, Marc Real and is produced by The Royal Flush. Other artists on Stankonia Sessions – A3C Edition include 9th Wonder, Killer Mike, Ying Yang Twins, Freeway, Aleon Craft, Fashawn, Thurzday and Rapsody.

The entire project was recorded at the legendary Stankonia Recording Studio in Atlanta during the 2011 A3C Hip Hop Festival. The mixtape drops November 16.