Stanislao Gastaldon the music publisher Sonzogno announced a competition for one-act operas, Gastaldon decided to enter with "Mala Pasqua!", a setting of Giovanni Verga's popular short story (and later play), "Cavalleria rusticana". Another young composer, Pietro Mascagni, entered the same contest with his opera "Cavalleria rusticana", also based on Verga's story. Gastaldon withdrew his work early in the competition when he received an offer from Sonzogno's rival, Ricordi, to publish it and arrange a premiere at the Teatro Costanzi in Rome. He expanded the opera to three acts, and "Mala Pasqua!" premiered on April 9, 1890 to modest success. Mascagni's opera eventually
Herva Nelli del destino", Puccini's "Tosca" (conducted by Eugene Ormandy), and "Un ballo in maschera". In 1951, Nelli reappeared with the New York City Opera, in "Cavalleria rusticana" again, as well as "Aida"; the next year, she portrayed Maddalena de Coigny in Giordano's "Andrea Chénier" (in Theodore Komisarjevsky's production). With the San Francisco Opera, in 1951 and 1952, the soprano sang in "Otello", "La forza del destino" (with Robert Weede), "Aida" (with Mario Del Monaco), "Cavalleria rusticana", "Il trovatore", and "La bohème" (this last on tour to Los Angeles); in 1957, she returned for "Un ballo in maschera". With the Baltimore Civic