The phrase "popular music revolution" may instantly bring to mind such twentieth-century musical movements as jazz and rock 'n' roll. In Sounds of the Metropolis, however, Derek Scott argues that the first popular music revolution actually occurred in the nineteenth century, illustrating how a distinct group of popular styles first began to assert their independence and values. He explains the popular music revolution as driven by social changes and the incorporation of music into a system of capitalist enterprise, which ultimately resulted in a polarization between musical...