Call me crazy, but sometimes I feel early rock 'n roll couldn't possibly have been conceived by human beings.
I mean, what kind of genius does it take to write something like "See You Later, Alligator"? A genius like Bobby Charles.
Here's unofficial footage of him playing "Down South in New Orleans" with The Band in the Last Waltz concert. (Bobby Charles does not appear in the film, though.)
Also visit this Bobby Charles fan-site (via the one of the best fan-sites)