Always the heavy and never the hero - that's me.

Warren later sang in San Francisco Chicago Mexico City and Buenos Aires he appeared at La Scala in Milan in 1953 and in 1958 he made a highly successful tour of the Soviet Union but for most of his career he remained in New York and sang at the Met. His death impacted the Met schedule for several years following; he had been cast in the title role for a future Met premiere of Verdi's Nabucco during the 1960-61 season. But by any standards it was a deluxe quintessentially "Metropolitan Opera sound" one that seemed to take on a special glow and lustrousness as it opened up and spread itself generously around the big auditorium.

A baritone he was a leading artist for many years with the Metropolitan Opera in New York.