Hub · 1948
Tony Iommi
Birmingham, England · Guitar · Songwriting
Black Sabbath guitarist; downtuned power-chord riff grammar that metal later treats as default.

Hub
Constant across Ozzy, Dio, and reunion Sabbath: finger injury → lighter strings → heavy riff as institutional spine.
Born 1948, Birmingham. Industrial accident cost fingertips; lighter gauge and downtuning feed Paranoid-era riffs (Iron Man, War Pigs). Ozzy-era Sabbath (1970–78) sets the citation albums; Dio-era Heaven and Hell (1980) keeps Iommi’s riff center under a different singer. Hub is continuity: vocalists and eras change; the guitar method does not. Late reunions still cite the same tritone/power-chord vocabulary.
Tenures
1968–2017
Guitar
Founding guitar through Ozzy, Dio, and late reunion eras.
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