Instruct: Classify the given review as either positive or negative.
Query: The Best in Classic Rock Sheet Music : Piano, Vocal, Chords&#65533;

This is rather a criticism about the way in which you present the book "The Best in Classic Rock Sheet Music : Piano, Vocal, Chords" .One cannot understand the actual content of the book without an excerpt or sample of its pages. It is not enough with the index. So I would appreciate if you include these mentioned information so we can get an exact idea about the book. I would recommend you to do the same for any music book. Thanks.