Hariclea Darclée "Roméo et Juliette" (Juliette); Jacques Halévy "La Juive" (Rachèle); Ruggero Leoncavallo "I Pagliacci" (Nedda) – opera interpreted in première for Romania at Bucharest National Theatre in 1903; Ruggero Leoncavallo "Zaza" (Zaza); Luigi Mancinelli "Hero e Leandro" (Hero) – opera composed for her voice and interpreted in prima assoluta at Madrid, in 1897; Pietro Mascagni "Cavalleria rusticana" (Santuzza) – oper interpreted in première for Romania at Bucharest National Theatre in 1891; Pietro Mascagni "L’amico Fritz" (Suzel) – opera interpreted in première for Teatro Della Pergole of Florence in 1891 and for Bucharest National Theatre in 1910; Pietro Mascagni "Iris" (Iris) –
Edmonton Opera with them. After a number of successful productions, the group changed its name to the Edmonton Professional Opera Association, with David Ker as the first president and Letourneau as the music director. "Professional" was dropped from the company’s name in August 1966, as the then-artistic director, Irving Guttman, argued that it should be obvious to all if a company is professional. The first season, 1963/64, featured two productions: "Madama Butterfly" in October 1963, and "Cavalleria Rusticana" and "Pagliacci" in April 1964. In 1966, Letourneau convinced Guttman, then at the Vancouver Opera, to come to Edmonton. The artistic director from 1966