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) –
John Keyes (tenor) "Otello", Samson in "Samson et Dalila", Tristan in "Tristan und Isolde", Turridu in "Cavalleria Rusticana", Walther in "Tannhäuser", and the title roles in "Don Carlos", "Lohengrin", Verdi's "Otello", "Parsifal", and "Siegfried". He is also active as a concert soloist, and is particularly known for his performances of Ludwig van Beethoven's "Symphony No. 9". John Keyes (tenor) John Keyes is an American operatic tenor who specializes in the dramatic repertoire. After studies in Chicago, he apprenticed and performed at both the Lyric Opera of Chicago and the Houston Grand Opera during the late 1980s. In 1990 he won an international singing