Peter Gabriel has made a career out of being a restless chameleon, a man perpetually interested in pushing sonic boundaries rather than remaining in stasis. The roles he’s chosen to inhabit over the last five decades are as varied and forward-thinking as they come: art school rocker. Progressive pundit. Alternative icon. Video vanguard. Electronic interpreter. World music leader. If there are new musical frontiers to discover and master, Gabriel is consistently among the first to dig into the aural dirt.