Sadly no one has updated the music gear list with the release of SA.
Can say there are 3 new rare gears that i have gotten:
Stygian Dragon is one and belive the others are Medusa's Lair and 1 for I believe that big red demon slasher (sorry forget his name and name of gear), know they also released other music gears with SA but no knowledge of names or how many common and uncommon were released