I'd read about the infamous Columbia Records "The Man can't bust our music" ad, which appeared in underground newspapers in 1968, but never seen it until Ann Powers tweeted a copy. Like "Mahler Is Heavy," it's a problematic attempt to market classical music with counterculture rhetoric. In the lower-right-hand corner you see the CBS recording of Stockhausen's Mikrophonie I and Mikrophonie II. The copy reads: "The microphone as an instrument with shrieks and cackling. Is he for real?" It may be argued, though, that the Man never entirely succeeded in busting Stockhausen.
See also: Mittwoch.