Opera Singer. A soprano probably best described as a lyrico spinto, she is particularly remembered for performing the works of Giacomo Puccini. The child of a well-off musical family, she was educated as a teacher but after choosing a career on the stage was trained by Emma Molajoli, wife of respected La Scala Milano conductor Lorenzo Molajoli. Rosetta made her 1920 operatic debut at Rome's Teatro National as Micaela from George Bizet's "Carmen" and the year following was heard in Turino as Siebel of Charles Gounod's "Faust". In 1922 she appeared in several venues as Mimi from Puccini's "La Boheme" and also assumed her first 'heavyweight' role, that of the tragic Desdemona in Verdi's "Otello". Rosetta soon added the lead of Pietro Mascagni's "Iris" to her repertoire, her performances often conducted by Maestro Mascagni himself; in 1924, Bologna performances as Mimi were seen by Arturo Toscanini who arranged for her 1925 La Scala debut as the betrayed Cio-Cio-San of Puccini's "Madame Butterfly". First seen at London's Covent Garden in 1926, she bowed at Berlin in 1929, with the Vienna State Opera in 1930, and with the Lyric Opera of Chicago in 1931, and continued to tour widely on both sides of the Atlantic, frequently called upon for her Puccini signature pieces, Butterfly, Mimi, Liu from "Turandot", and the title leads of "Tosca" and "Manon Lescaut". Over her career Rosetta was part of at least three world premieres, and though she received high marks the works themselves are essentially forgotten; her voice darkening with time, from around 1937 she concentrated on such heavier roles as Nedda of Leoncavallo's "I Pagliacci", the title heroine of Verdi's "Aida" and Leonora from the same composer's "La Forza del Destino", and Maddalena of Umberto Giordano's "Andrea Chenier". She retired from the stage in 1946 and was for a number of years a celebrated voice teacher; today much of her considerable recorded legacy is preserved on CD.