Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sheet music

I'm very disappointed in this item. I was expecting information, not sheet music. There was no written explanation of this product. I would not have boughten it if I knew it was only sheet music. I have liner notes. Also bought the Kirkland book for the same reason. Once again, no explanation of the product. When it came it was some kind of scientific outline, not even a book, but a disclaimer that it was unreturnable.