That slow jazz build-up, that middle eastern vibe, the laid back HOLY SHIT WHAT JUST HAPPENED?! Somehow Chuck et al manage to keep that middle eastern thing interwoven with some of the densest arrangements and sounds of the day. On "Human" Death suddenly matured from competent but ultimately middling 80's thrash act to fully insane technical death metal act at the top of not just their game but everyone's in what appeared to be an instant. What an incredible start to the 90's. You're sorely missed Chuck.