(2002) American Popular Music: From Minstrelsy to MTV, Oxford University Press. Watkins, S. Craig, (2005) Hip Hop Matters: Politics, Pop Culture, and the Struggle for the Soul of a Movement, Beacon Press, . External links The Consumption of Music and the Expression of Values: A Social Economic Explanation for the Advent of Pop Music, Wilfred Dolfsma, American Journal of Economics and Sociology, October 1999. Western culture 1920s neologisms Music genres