Firesign Theatre

Firesign 1

All I have found regarding the source is: “Bootleg Of Partial 14 April [some sources say 17] 1974 Berkeley Concert”.

A rare example of a bootleg containing comedy.

“According to LIFE magazine, Firesign were “The favorite comics of the Rock Age.”
They are, in fact, creators of what Stereo Review’s critic Eric Salzman called “contemporary, relevant, multi-level non-linear theater — a kind of verbal electronic opera.” The quartet presents the work in the authentic voice of its author-improvisers of whom Rolling Stone said, “The very least they should get is an Academy Award.”