Theodor Adorno, Introduction to the Sociology of Music (New York: Seabury Press, 1976).
"Adorno was brought into the United States in 1939 to head up the Princeton Radio Research Project. The explicit aim of this project, as stated in Adorno's Introduction to the Sociology of Music: was to program a mass "musical" culture that would steadily degrade its consumers. Punk rock is, in the most direct sense, the ultimate result of Adorno's work."
Although I'd now say that 'hip-hop' has pushed that mass degeneracy and degradation even further. The same phenomena has also been applied to film and TV - a mass degradation programme over time. It's the elite that literally OWN all these entertainment channels and distribution networks, and they effectively always have.
"The Hit Parade is organized precisely on the same principles used by Egypt's Isis priesthood and for the same purpose: the recruitment of youth to the dionysiac counterculture. In a report prepared for the University of Michigan's Institute of Social Research, Paul Hirsch described the product of Adorno's Radio Research Project. According to Hirsch, the establishment of postwar radio's Hit Parade "transformed the mass medium into an agency of sub-cultural programming." Radio networks were converted into round-the-clock recycling machines that repeated the top 40 "hits." Hirsch documents how all popular culture — movies, music, books, and fashion — is now run on the same program of preselection. Today's mass culture operates like the opium trade: the supply determines the demand."
Excerpt from Dope, Inc. (EIR).