Music is an artwork that, in a single guise or another, permeates every human society. Modern music is heard in a bewildering profusion of styles, a lot of them up to date, others engendered in previous eras. Music is a protean art; it lends itself simply to alliances with phrases, as in song, and with bodily movement, as in dance. Throughout history, music has been an necessary adjunct to ritual and drama and has been credited with the capability to mirror and affect human emotion. Popular tradition has consistently exploited these prospects, most conspicuously at present via radio, film, tv, …