Instruct: Classify a review into positive or negative sentiment.
Query: This CD is great!

I've never listened to bluegrass as I am a rock-n-roll, heavy metal, and alternative listener (along with some occasional, really good blues). I saw a performance on the Conan O'Brien show by Ricky Skaggs and Kentucky Thunder doing "Walls of Time," and it absolutely blew me away! I figured if the rest of the CD was just half as good as that one tune I heard on the show, then I must buy it. I did buy it & I listen to it everyday on my way to and from work! When not in use, I keep it right next to my Metallica CD...go figure!