The name Nick Gravenites is probably familiar mainly to aficionados of '60s Chicago blues and San Francisco blues-rock and psychedelia of the same era, but not to a wider audience, because although Gravenites was an important contributor to the music during its heyday, he was unfortunately sparsely recorded and often worked behind the scenes over the years. More people are likely to know him for the dozens of great songs he wrote: "Born in Chicago" (Paul Butterfield), "Buried Alive in the Blues" (Janis Joplin), "East-West," "Work Me Lord," "Groovin' Is Easy," "Bad Talkin' Blue...