Tragically, the Dehumanizer reunion imploded almost immediately after the album’s release. During a co-headlining tour with Ozzy’s solo band, the tension boiled over. Bill Ward quit after a show in California, citing the toxic environment. In a bizarre twist, Ozzy’s guitarist (a young, unknown Zakk Wylde replacement named Steve Vai) fell ill, and Ozzy asked... Tony Iommi to play in his solo band. Iommi refused. The tour ended in acrimony. Ozzy went back to his solo career. Iommi resurrected a new version of Sabbath with Tony Martin.
Recently unearthed, the Dehumanizer demos offer a fascinating glimpse into Black Sabbath's creative process. These unpolished, rough-around-the-edges tracks showcase the band's spontaneity and willingness to push boundaries. Tracks like "In for the Kill" and "Bad Blood" demonstrate the band's ability to craft infectious, hard-hitting riffs, while "No Stranger to Love" and "Get a Grip" reveal a more experimental side, with eerie atmospheres and dissonant harmonies.
Final album track length: 5:37 | Demo length: 6:01
They had 20 songs. The album only needed 10. The demos? Pure rage.
The Dehumanizer Demos serve as a testament to the chemistry of the Dio-era lineup. When they were "on," they were a freight train. The demos prove that the songs were strong enough to stand
The most fascinating change: Ozzy’s phrasing. In the final version, his delivery of "I am a computer god / Digital lover of the human seed" is measured, almost chanting. In the demo, he screams the lines with a ragged desperation. There’s a flub in the second verse where he laughs—proof that these sessions were loose, creative, and joyful in the chaos. The drum sound is pure Bill Ward: jazz-infused fills that swing even under the crushing weight of the riff.
The Dehumanizer demos are HEAVIER than the album.
For decades, Dehumanizer was the forgotten middle child—too heavy for classic rock radio, too cynical for the grunge kids, too angry for the nostalgia crowd.
Text: THE LOST RIFFS.
The story of the demos is a fascinating look into a turbulent reunion of the iconic Mob Rules lineup. Recorded in late 1991, these sessions are particularly notable for featuring legendary drummer Cozy Powell before an injury forced his departure and the return of Vinny Appice. The Context: A Tense Reunion
The represent one of the most volatile and fascinating periods in heavy metal history. Recorded between late 1991 and early 1992, these sessions capture the difficult reunion of the Mob Rules lineup—Ronnie James Dio, Tony Iommi, Geezer Butler, and Vinny Appice—amidst shifting personnel and internal tensions. The Complex History of the Dehumanizer Sessions
The third disc is a raw, unfiltered look at the band's chemistry, including studio chatter and short conversations between Cozy and Ronnie. It features multiple instrumental versions of "Computer God" and the final studio demo versions of the album's tracks with vocals, recorded just before the official album sessions began.
Tony Iommi’s guitar work on the demos is noticeably more abrasive. On the final album, the production is incredibly compressed and clinical—a style that polarizingly defined 90s digital metal. On the demos, however, Iommi’s Laney amplifiers bleed with a warm, fuzzy, and overdriven doom metal crunch that throws back to Master of Reality . The Rhythm Section
With Appice back behind the kit, the band moved their operations to dynamic rehearsal spaces in Wales and Los Angeles. The demos recorded during this mid-to-late 1991 period reveal a stark shift in sonic direction.
If you enjoyed this deep dive, explore the bootlegs of the "Seventh Star" sessions or the unreleased "Heaven and Hell" outtakes for more hidden metal history.