Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Band Metallica Should Have Been

Up until the release of Existence of Trauma, this was AIB's heaviest CD. Too bad this is a reissue as it is missing a couple of their heavier songs. Also it has songs from their EP Gone With You. You can hear the progression of heaviness from their first cd Natural Mutation under the band name St. Mucus to their self titled cd Am I Blood and Agitation. The only thing they have done is gotten heavier, faster and better. Metallica CANNOT hold a torch to these guys.