Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: complete rip off
Review: This is a listing of pentatonic scale in different keys, nothing more, you'll find this FREE all over the internet, and even having it in a book won't help you play it at all.I think I'll publish a book Major Scales for the Jazz Rock Keyboardist and list C Major, D Major, E Major scales and nothing more and see if it sells. It will if I post many self-reviews anonymously and say it's essential for musicians.It is interesting that all the reviews for this book seem to be from a "reader" from somewhere USA and are very anonymous... obviously that is dishonest for the publisher to post them to generate sales. Avoid this book at all cost. Useless.
