As with my earlier Pinetop's Boogie Woogie mass purchase, the idea here was to listen to a few different versions with an eye to learning to play some variant of the song myself.
The neat thing is that while the last time I tried to master the song (which was some years ago, I think) I couldn't play it at all, really. But now I'm trying to follow along and I only suck at it. So, progress! With a bit of luck I'll only be mediocre at it before too long, I hope!
As appears to be traditional with these things, one of the versions of the song is in good old C, while the other appears to be in E flat or some damn thing.