Born Jean Browning in Central Illinois, this contralto established for herself a singular identity among singers of the deepest, darkest roles for female voice. Tall and strikingly attractive, she possessed both the physical and vocal allure for Carmen and created a riveting portrait of Klytemnestra, both addled and imperious. The later role, perhaps the one with which she was most closely identified, was captured on disc in both studio (with Böhm) and on-stage at Salzburg (with Mitropoulos). Her Rheingold Erda in Solti's Ring was likewise striking, voiced with steady, earth-...