 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 Opera in 1952, she debuted in "Aida"; in the 1954-55 season, she sang there in "Il trovatore".