Tony Iommi is Black Sabbath’s riff architect, the guy who turned a factory accident into the sound of heavy metal. From 1968-2017 he was the constant in Sabbath’s many shapes, anchoring the classic Ozzy run (1968-1979) and then dragging the name through every storm that followed. When the Dio-era core rebranded as Heaven & Hell (2006-2010), he proved the same hands could still summon fresh thunder. Iommi’s down-tuned, fingertip-adapted chords don’t "shred"; they loom, like machinery waking up in the dark, and that’s why every doom riff owes him rent. As a collector, I’ll take one Iommi chord over a hundred flashy solos. He stepped out solo with "Iommi" (2000) and "Fused" (2005), but the Sabbath pulse never left his fingers.