This is the stuff of legend. It brings one to tears (I literally cried). Oh my God, she did it so beautifully! This is a reminder of the spectacular timbre of voice she commanded, when her career was at peak. Impressive, especially considering that she is a mezzo, not a soprano! What pristine clarity! Emotion! Articulation! Phrasing! Pitch control! Elegance! She is just utterly perfect here, in one of the best renditions of this phenomenal aria, in all of History.