Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Pantera: excellent guitars, horrible singing

Pantera really should be an instrumental band. Their singer is really really really bad. He cant even sing. He just yells at the top of his lungs throughout the whole album. However, the nails on the blackboard singing is offset by excellent guitar playing. Those are some of the best solos I've ever heard in my life. Too bad it gets ruined by a guy who sings like Celine Dion. The only song here that I can honestly say I like is Floods, mainly because it has more guitar than vocals.Thank God for Iron Maiden. They have an excellent singer to go along with their good guitarists. Long live Bruce Dickinson!