Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed

I've read the good reviews here and thought I'll give this book a try.First of all, the quality of the book is pretty bad. It's almost impossible to read some of the diagrams. I wouldn't mind if it was a $5 book, but for over $30 I expected something different and much better quality.In addition, the buyer should be aware that this book very dull. It explains music theory in a very boring, straightforward way and will not let you practice any tunes while using it. It's just a workbook with many writing exercises, nothing more.It's probably good to the most serious students out there, but for me it will never be a pleasure to use this book as other books which actually teach you how to play between one theory to the other.I wouldn't recommend this book unless you are a really serious musician that is willing to spend much time on writing exercises.