She sang with many of the leading tenors of her time, including Carlo Bergonzi, José Carreras, Franco Corelli, Plácido Domingo, Nicolai Gedda, Alfredo Kraus, Mario del Monaco, Luciano Pavarotti, and Richard Tucker.

Besides the Queen of the Night, her Mozart roles included Donna Anna in Don Giovanni, Fiordiligi in Così fan tutte and Vitellia in La clemenza di Tito.

She sang the great bel canto roles, specifically in Rossini's Armida, in Bellini's Norma and I puritani, and in Donizetti's Lucia di Lammermoor.

She went on to the great dramatic Verdi roles including Abigaile in Nabucco, Lady Macbeth, Leonora in Il trovatore, Amelia in Un ballo in maschera, and Elena in I vespri siciliani.

She made a return in November 1996 at the Concertgebouw Operafeest, at the age of 65 singing the Bolero from I vespri siciliani and Anna Elisa's aria "Lang de Liebe, du Himmel auf Erden" from the operetta Paganini, reportedly "bringing the house down".

On 26 October 2011, a tribute gala concert for her initiated by baritone Ernst Daniël Smid was staged at the Royal Theater Carré.