I don't know why this wasn't my first response but I agree with the poster that says download or buy a midi file of a JLL song like GBOF. Then you can use almost any sequencer to either print or view on screen the transcription of what the player is playing. Pick a part you want from any song and view it, slow it down, isolate it, transpose it, anything you want. I have done this several times myself.

The only thing is the part maybe split over several tracks, but I just keep muting tracks until the only parts I hear are what I want to learn.

I hope my stride piano comment didn't lead you off track I was thinking boogie woogie and I even used some basic ragtime exercises for the repetitive left hand bass parts. Of course as you know he was also influenced by Western swing, boogie-woogie, uptempo R&B and Delta blues, according to his page at the hall of fame .

[This message has been edited by mikeathome1 (edited 07-04-2007).]