Over at Cuepoint, a fascinating study of vintage print ads for popular music like this one from the late 1960s, pitching far out avant-classical recordings by Terry Riley, Charles Ives, Edgar Varese, Karlheinz Stockhausen, and Walter (now Wendy) Carlos.
"The Establishment's against adventure," read the by-then international record company's accompanying ad copy. "And the arousing experience that comes with today's music. So What? Let them slam doors. And keep it out of the concert halls."