“The official Black Sabbath history lesson regarding Vol.4 seems to go something like this: after three albums inventing and defining what would eventually come to be the core of heavy metal, it was time for the band to expand their sound, roll with the progressive changes of the moment, get even bigger. But for me, thirteen when Vol.4 hit, catching random pieces on late night radio, it was just this deeply heavy stuff that seemed to capture everything that was weird and wrong with the world, but also kind of cool. Wheels of Confusion indeed, crushing anything that got in their way.” (Philip Random)