Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A consideration about Cannibal Corpse

I'm a big heavy / trash metal, hard-rock fan and I'd like to say something about Cannibal Corpse. People who like their sound, thinking that "death metal" is really radical, different and non-commercial, should think different. This band is more commercial than Madonna, Michael Jackson or Back Street Kids. Although they make much less money than the stars I quoted, they don't play nothing! Under the cover of "having an attitude", they maintain a public without composing good songs, without at least improving in their own musical style and entire songs with only three or for accords. Who is more commercial?