Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I wish I had this book 4 years ago!

I have been playing sax for 4 years, now.. This book still had some things that I was not aware of or just recently learned. If I had this when I 1st started I would be a much better player, now. Bottom line: IF YOU WANT TO PLAY THE SAXAPHONE, THEN GET THIS BOOK. period.