 The soprano also appeared at the San Francisco Opera and the Lyric Opera of Chicago.In San Francisco, she sang Sophie in "Der Rosenkavalier", Sister Constance of St Dénis in "Dialogues des Carmélites" (the United States premiere), Oscar in "Un ballo in maschera" (to the Amelia of Herva Nelli), Lauretta in "Gianni Schicchi", and Dircé in "Médée" (the Italian version), from 1957 to 1960.She took part, in 1964, in the American premiere of "Daphne", at the Santa Fe Opera.