Black Sabbath didn’t stop when Ozzy Osbourne got booted from the band in the late ’70s, after delivering six all-time great albums (as well as two lesser platters). It also didn’t call it quits after the initial go around with Rio James Dio, which resulted in two top-notch records. No, these heavy metal pioneers kept right on thundering away, calling on (what at least seemed like) another 434,812 front men to keep the party going. One of those was the great Tony Martin, who would serve as the band’s second-longest-lasting lead vocalist (after Osbourne). The work that Martin did with Sabbath ha…