Al Duvall is a contemporary New Yorker with the soul of an old time American snake-oil salesmen, a P.T. Barnum of bad puns, black humor and banjo pickin'. He's the Tom Lehrer of bluegrass, cheerfully singing surreal lyrics unpredictably capable of eliciting gasps of astonished laughter.
His thoroughly entertaining album "Coroner and Knives" came out a few years back and it's contents range from almost-punk energy levels (tho all instrumentation is acoustic) to bluesy dirges:
Al Duvall "William Knave"
Al Duvall "Croaching in the Thicket"
This comes to us courtesy of dualPlover records from Australia (famed for M4M fave Singing Sadie), a label run by a guy who crushes his face into a bloody mess with glass outfitted with contact mics. Good news! The Free Music Archive has some of Duvall's tuneage available. I especially like "Where The Comet Falls" from his "Recluses Unite" album.