Initial writing and demo sessions took place at in Birmingham. The lineup at this early stage was: Tony Iommi: Guitar Geezer Butler: Bass Cozy Powell: Drums Ronnie James Dio: Vocals (joined mid-process) Key Demo Phases and Recordings
Bootleg collections such as The Dehumanizer Demos or Rehearsals 1991-1992 often feature a mix of instrumental jams and rough vocal takes: YouTube·Boots Bloody Boots
The represent a fascinating, turbulent chapter in the band's history, capturing a transitional period that eventually reunited the iconic Mob Rules lineup. These recordings, which have circulated as bootlegs for decades, provide a raw look at the evolution of one of heavy metal's heaviest and darkest albums. The Context: A Band in Flux