Quoth the Johns:
When Mono Puff visted the Washington DC studios of All Things Considered, they couldn't resist cooking up this Puffed-up version of that show's memorable theme. That's Mike "Killer" Kahn sitting in on the bass as switch hitter Dan Levine takes charge of the trombone duties.
—John Flansburgh
[source: TMBG Unlimited, October 2001]