"How much history can be communicated by pressure on a guitar string?" Robert Palmer wondered in Deep Blues. Greil Marcus answers here: more than we will ever know. It is the history in the riff, in the movie or novel or photograph, in the actor's pose or critic's posturing--in short, the history in cultural happenstance--that Marcus reveals here, exposing along the way the distortions and denials that keep us oblivious if not immune to...