Birgit Nilsson has died.
I saw her live only in Die Frau Ohne Schatten where she played the Dyer's wife, brilliantly. I have been listening to her two CD recording of Wagner and Strauss arias. The entire set is incredible. She has been called the greatest Wagnerian soprano ever, and in terms of her ability to dominate the material this is true. There is no category Heldinsopran, but if there were, her voice would be the model.
Amazon has a dvd of her doing Tristan und Isolde. I could buy it and then I'd have three.