Donald John Gramm (February 26, 1927 – June 2, 1983) was an American bass-baritone whose career was divided between opera and concert performances. His appearances were primarily limited to the United States, which at the time was unusual for an American singer. John Rockwell of The New York Times described Gramm as follows: "He had an unusually rich, noble tone, and although its volume may not have been large, it penetrated even the biggest theaters easily. Technically, he could handle bel-canto ornamentation fluently. But his real strengths lay in his aristocratic musicianship (impeccable phrasing that he polished by accompanying himself at the piano, and an easy command of five languages) and his instinctive acting." Among the most notable of his many operatic roles were the title role