Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Rollins: the definitive musical guide

As I just retired and wanted to start understand better the jazzmusic, that I am following since 40 years, this is the first book I bought for this purpose. It will definitely suit this purpose. At first I read it as a novel, including the extensive discography. I then could situate all the Rollins' records and tracks that I collected over the years. Next, but most extensive and the most interesting further use will be to systematically go through my records and study them based on the comments in this book. I am looking forward to much additional joy with the book and to improve my understanding of jazz in general.