Black Sabbath

Black Sabbath’s catalog is held together by Tony Iommi’s riff language, but its changing singers and collaborators create several distinct eras. The early records move from ominous blues-based heaviness toward broader, more adventurous arrangements; the Dio albums bring a sharper fantasy-driven scale, while later lineups explore darker, more modern metal. The Martin-era records emphasize melodic vocals over a dense, dramatic guitar sound, and 13 revisits the original group’s heavy, slow-groove foundations. Ranking the albums means comparing mood, riff invention and vocal character across a long history, while deciding whether consistency or reinvention best defines the band. The changing lineups make comparisons of vocal performance especially revealing.