He succeeded by appropriating a large amount of music previously written for his unsuccessful opera Zaira.
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Bellini thoroughly reworked ten melodies from his unsuccessful Zaira into I Capuleti e i Montecchi: he explained that "Zaira, hissed at Parma, was avenged by I Capuleti".
In 1981 she made her operatic debut in Florence as Giulietta in Bellini's I Capuleti e i Montecchi and rose to prominence following her successful debut at La Scala in 1982 when at very short notice she replaced Montserrat Caballé in the title role of Donizetti's Anna Bolena.
He was committed there through 1837, singing such roles as Alamiro in Donizetti's Belisario, Don Pedro in Giuseppe Persiani's Inês de Castro, Edgardo in Donizaetti's Lucia di Lammermoor, and Lorenzo in Bellini's I Capuleti e i Montecchi He made his debut at La Scala in 1838 as Alphonse in Daniel Auber's La muette de Portici, remaining there through 1839.