Filling in for an AWOL Keith Richards (who had visa problems at the time, stemming a then-recent drug bust in Toronto), Frank Zappa reads “The Talking Asshole” routine from William S Burroughs’ Naked Lunch. The occasion was the Nova Convention, a three-day celebration of Burroughs’s work that took place in New York City in early December of 1978.

Others on the bill at the Nova Convention included Patti Smith, Robert Anton Wilson, Brion Gysin, Laurie Anderson, poet John Giorno, Timothy Leary, Philip Glass, John Cage and author Terry Southern, who can be heard at the beginning of the clip, introducing Zappa.