[3] She made her professional stage debut with the Canadian Opera Company in 1988 singing The Female Prisoner in Shostakovich's Lady Macbeth of Mtensk.

She became a member of the Vienna Volksoper in 1989 where her roles included Countess Almaviva (The Marriage of Figaro), Donna Elvira (Don Giovanni), Laura (Der Bettelstudent) and Tatyana (Eugene Onegin).

In 1991 she became a member of the Vienna State Opera where her roles included Desdemona (Otello), Antonia (The Tales of Hoffmann), Micaëla (Carmen), Die Tochter (Cardillac), Agathe (Der Freischütz), Countess Almaviva, Donna Elvira and Donna Anna (Don Giovanni), Ellen Orford (Peter Grimes), Eva (Die Meistersinger von Nürnberg), title role in Arabella, Ariadne in Ariadne auf Naxos, and The Marschallin (Der Rosenkavalier).

She moved to London, England in 1995, and made her British debut at Glyndebourne as Donna Elvira in Don Giovanni, returning there for Arabella in 1996.

At the Met, she has also performed Sieglinde (Die Walküre), Amelia (Simon Boccanegra), Chrysothemis (Elektra), Leonore (Fidelio) and Madame Lidoine (Dialogues des Carmélites).

[9] In 2014 she received the Paul de Hueck and Norman Walford Career Achievement Award from the Ontario Arts Foundation.