Can music change anything, or does its potency lie merely in its exemplary status as an organised human activity? What are the effects of power relations on music and to what extent is music itself a site at which power relations can be reinforced, challenged or subverted? What are the economic, affective, corporeal or ideological mechanisms through which these processes occur? Has the age of  recorded music as a potent social force now passed, a relic of the twentieth century; or with the music industry in crisis, is music culture in fact the first post-capitalist sector of the cultural economy, only now emerging from the long shadow of the culture industry? What historical or contemporary examples can we draw on to address some or all of these questions?