There's a tape called "The Face on the Dime" which is entirely Roosevelt songs; I can't remember the performer or label, though. A quick web search turned up two possibly relevant sites:http://www.bluesworld.com/Guido.html, a book on Roosevelt's influence on blues songs, and http://www.authentichistory.com/, which has some example songs downloadable in Windows Media Player format. Hope this helps!

Chocolate Pi (who really should start that chemistry problem set now)