According to the Author Notes, Anthony lent his name to this one to help a down and out author. I'm not sure I buy that. The tone is too much like Anthony's. This book feels like a grown-up Xanth novel. There aren't as many puns, but then the book is written for an older audience and the "mature content" doesn't have to be disguised.
I enjoyed the story and liked the "matter of factness" of the magic. There's no real explanation - it just IS. And, since my husband plays blues guitar (among other styles), I really enjoyed all the musical references. But, no musical knowledge is needed to understand or enjoy this story.