This full set from 1970 is for anyone who forgot (or, perish the thought, doesn't yet know) why Black Sabbath are gods among men. Paranoid had just been released, and Sabbath had only really been a professional band for about two years at the time, yet all the elements were in place. Geezer Butler and Bill Ward performed as one of the best rhythm sections in all of rock and roll at the time and showed that you could be monstrously heavy and still retain a solid groove, and Tony Iommi was plumbing the darkest, scariest depths of guitar sounds the world had ever heard. Over top of all that noise, Ozzy's vocals were powerful and menacing. It was still the blues-based rock and roll that the world was so familiar with at the time, but it was blues-based rock with all the color drained out of it. It was claustrophobic and horrific and well... paranoid.
It's important to retain a sense of historical context to fully grasp why Black Sabbath was so terrifying. This show was recorded in December of 1970, so Woodstock was still fresh in people's minds, and the stabbing at Altamont was only a year before this concert. The hippie movement was flaming out, and people were beginning to suspect that love wasn't going to save us. Then Black Sabbath comes roaring out of England with the most unholy sound anyone had ever heard:
