Emerson Lake & Palmer

With former members of King Crimson, The Nice, and Atomic Rooster, Emerson, Lake & Palmer were a veritable supergroup, and the 1970 release of their debut album, ELP, was the first step for a band that went on to define progressive rock. With capable Keith Emerson at the controls of the Moog synthesizer and the Hammond B3 organ, Greg Lake on guitar and vocals, and talented Carl Palmer on drums, the debut release leaned heavily toward a new technical wizardry that became the band's halmark. --Paul Clark