Josef Greindl, with a voice mellower and less cutting than those of Gottlob Frick or Kurt Böhme, nonetheless became a dominant presence in the heaviest German bass roles during the 1950s and 1960s. A wide vibrato bothered some listeners who were sensitive to such matters, but Greindl was a savvy enough artist to subdue the effect in all but the most sustained passages and he was a canny presence. His Hagen exuded evil, while his Sarastro had a warmth and dignity that clarified the role as few others did. His occasional ventures into Italian opera largely took place in Germany ...