The early-'70s rock outfit Elf is best-known as the group that gave singer Ronnie James Dio his start and he would eventually set his sights on a tougher, metallic sound, fronting the likes of Rainbow, Black Sabbath, and his own solo band, Dio. The group went through several name changes in the late '60s (the Electric Elves, the Elves), before settling simply on Elf and issuing a self-titled debut recording for Epic in 1972, produced by Deep Purple bassist Roger Glover. The group's best-known lineup consisted of Dio (who was at this time going by his real name, Ronald Padavona...