Miles Davis, Bitches Brew 40th Anniversary (Columbia). Here is everything you are likely to want to hear, know, ask or think about Davis’ full-fledged leap into the rock ethic that informed his music in the 1970s. It is a lavish boxed package of two LPs, three CDs, a DVD, a book and a packet of posters, ticket replicas, photos, proof sheets and Columbia memos. For those willing to spend more than a hundred bucks, the memorabilia aspect is an attraction, but the music is the thing. Sidemen including Wayne Shorter, Joe Zawinul, Chick Corea, John McLaughlin, Dave Holland, and post-production maven Teo Macero, helped Miles deliver on his celebrated claim, “I could put together the greatest rock & roll band you ever heard.” Rock never lived up to his example.