The trajectory of twentieth-century rock was a continual progression away from simplicity. It was pioneered in the 1950s as unruly, unserious entertainment for teenagers. It matured and peaked in the 1960s, mirroring both the rise of the counterculture and the social maturation of its audience. During the seventies, rock became a big-money business and spawned the identifiable caricature of the Rock Star; in the eighties, that business model was incorporated and the caricature became perfunctory. Throughout the form’s existence, there were always truculent artists who positioned themselves
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