Buster Plays What?

I posted this earlier today on my personal blog, and Matt pointed it out that this should be posted here as well.

I was just hipped to a great video of the Tampa Bay area's very own Buster Cooper. Buster has been playing for years now down at The Garden Restaurant in St. Petersburg and always generously allows young aspiring jazz musicians to sit in. Sitting down to talk to him about his experiences is veritable history lesson in jazz and more specifically a recount of the late 1960's Duke Ellington Orchestra. Here he takes the second solo blowing over "The Opener," but what's he playing?