Instruct: Classify a review into positive or negative sentiment.
Query: Ignore the naysayers.

So the author tries to link things like Coltrane's music and unified field theory? So what? I didn't care. I found this book to be very informative and fun to read. I'm not sure what some of the complainers were expecting(?) If you are new to Coltrane this is a decent book to give you an idea of his impact on the times and on Jazz music. If you want something with more meat and discussions of Trane's music and music theory, try Lewis Porter's recent book on him.