"Love and Theft" antecedents

What do Billie Holiday, Eddy Duchin & Lew Sherwood, Son House, and "Johnnie & Jack" (not Jill's kids) all have in common?

If you're a Dylan fan, or just like his "Love and Theft" album, you'll find this collection of five mp3s fascinating, all clear sources of "Tweedledee & Tweedledum," "Floater," "Sugar Baby, "Bye and Bye," and "Lonesome Day Blues."

Theft? Not hardly, as the Duke would say. Folk has always had a history of appropriation from earlier music. Does anyone complain that "Girl from the North Country," uses the same music as "Scarborough Faire"? Yeah, well they probably do, but they're idiots.

Love? Yes. Most definitely, love.