I listened to a great American Routes show tonight w/an interview w/91 year old Les Paul. He told about the first electric guitar he built, from a piece of railroad track and a telephone receiver! Also interviewed was Honeyboy Edwards, also 91, with remembrances of Robert Johnson. You can listen to the interviews at the website:
http://www.americanroutes.org/
I heard some great tunes as well: Sugar Foot Rag - Junior Brown; My Creole Belle - Mississippi John Hurt; My Babe - Bo Diddley; and Worried Man Blues - the Carter Family were favorites.