There’s only one joke that I get in this laugh-filled video — and it’s not the one the audience is amused by. It’s the sight of a clean-shaven, short-haired Frank Zappa in a suit. (“That’s Zappa, Z-a-p-p-a?” the host asks. “Might we be familiar with any of your songs as of yet?”)

He’s so cutely seriously about the sounds the bicycle can make and the improvised concerto they’re going to play: “You’re supposed to express yourself freely,” he says.

“Try to refrain from musical tones” is the instruction he gives. At around 1:45 the music actually starts:

We have only five words: new Grist List theme song.

H/t Coudal Partners Blended Feed