The final album from Deep Purple Mark II is a showcase of their greatest tricks and riffs. There’s the metallic funk of “Rat Bat Blue,” the hard-rock party-starter “Smooth Dancer,” and the fiery “Mary Long,” which invokes that classic “Smoke on the Water” grind—the perfect foundation for Ian Gillan to spin his saucy tale. “Super Trouper” rides atop Ritchie Blackmore’s stop-start dynamics and sudden twiddles, while “Woman from Toyko” alternates between autumnal piano interludes and primal pounding rock.