This is a CD that needs some spins before it really sinks in. But when it does, you'll discover a musical universe deeply fascinating, chaotic, and strangely beautiful.

It's no secret that Psychotogen are heavily influenced by pioneer bands such as Atheist, Cynic and Death. It shines through, yet the music stays unique, fresh and original. I also spot a little bit of Pessimist in the music, which is not that strange since both Chris and Tony Pernia used to play in the band. Tony Pernia's awesome bass work lays a really cool jazzy bottom for the rest of the music to unfold upon. Jeremy Grande's guitar and Chris Pernia's drum work provide the perfect surface for Mike Harrison to unleash his vocals on, which vary from being growl, to clean, over to screams. I tell you, if you like your metal played with great variation and unpredictability, nothing should hold you back from checking Psychotogen out 'cause they really know how to create some truly amazing and quite original music.

If Psychotogen continues to progress and evolve like they have done from their debut Perverse and Unnatural Practices to The Calculus of Evil, then there aren't any limits to what they can achieve.