Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Boring, big, bad

This book was required for a Musical Acoustics course. Worst textbook choice ever! Firstly, at 800 pages, it's too thick and heavy to take to class, even in a backpack. Second, the diagrams in the textbook are really old and in black and white and hard to tell what's going on. The book explains everything poorly. It covers so many topics that weren't even discussed in the class. The way it explains equations is terrible, especially when four different equations in the same chapter use the same letter to mean different things. Nothing is explained in an intuitive way. If you read everything carefully twice and double it up with Wikipedia, you might grasp the concepts.Bottom line, whatever bad things that could be said about a book, I want to say about this book. But if I want to be fair, it deserves more than one star. I mean, it does cover a large amount of material, and the summaries at the end of the chapters do provide a decent overview.