This is really a classic piece of radio work. First off, it sounds gorgeous--thank heaven the producers opted for two hours so they could play the whole songs, keep the pace so casual and easy. The whole thing breathes. Second, there's just enough history, just enough current appreciation, jsut enough Greil Marcus being his usual brilliant self. You end up feeling as if your mind has been stretched, as if you've been helped to make interesting connections. For anyone of this vintage, it's compelling, a perfect piece to stretch out on the sofa and listen to in the twilight, wineglass dangling in your hand.