Those eminent conductors with whom she performed included Karajan, but also Otto Klemperer, Eugen Jochum, Leonard Bernstein, Rafael Kubelík, Karl Böhm, Georg Solti, and Carlos Kleiber.
In 1980, she sang the part of the Countess in a now legendary new production of The Marriage of Figaro (with Georg Solti as conductor, Giorgio Strehler as director and Ezio Frigerio as set designer).
[4] Janowitz's farewell to the operatic stage was on 18 May 1990, at the Vienna State Opera in the title role of Ariadne auf Naxos (with Heinrich Hollreiser as conductor, and Filippo Sanjust [de] as director and designer).
[8] Like her predecessor Maria Stader, who had a similar timbre to hers, and like her contemporary, Elizabeth Harwood, Janowitz mastered first and foremost the high and middle register and lyrical-emotional expression.
An excerpt of her portrayal of the Figaro Countess in the duettino "Canzonetta sull'aria" with Swiss soprano Edith Mathis features prominently in the 1994 film The Shawshank Redemption.