Last Thursday was the 50th anniversary of Leonard Warren's tragic death on the stage of the Old Met. With no offense to Merrill fans, I cannot help but feel that Warren was the greatest American baritone of all time. His production had a ring and color that usually one had to travel to Europe to hear. His high notes were the envy of many tenors, yet his voice had a purely baritone timbre. A "baritenor" or "tenortone" he clearly was not. He was positively unique, and positively supreme. Here he is in Rossini's immortal Largo al factotum:
http://www.youtube.com/watch?v=ZYameVeiRWQ