Rick Moody has been writing about music as long as he has been writing, and this book provides an ample selection from that output. His anatomy of the word cool reminds us that, in the postwar 40s, it was infused with the feeling of jazz music but is now merely a synonym for neat. "On Celestial Music," which was included in Best American Essays, 2008, begins with a lament for the loss in recent music of the vulnerability expressed by Otis Redding's...