Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: excellent book

Fourteen of the arrangements in this book and in the Joe Washington book have been recorded by Michael Lucarelli, a classical guitarist living in Salt Lake City and are available on the web. Lucarelli recorded them exactly as written.Unfortunately, Guitar's Forum, a little one-man company, got Larry Beekman to record his transcriptions and then took it out-of-print which ruins the opportunity for students to learn from the recordings. GF claims that it's temporarily out-of-stock, but it's been that way for the 2 years that I've been checking the website. Beekman should have gone with a reliable recording compny like Guitar Solo Publications.