Filippo Galli (bass) 26 September 1812. His performance in the "Sigillara" aria was the hit of the immensely successful opera. His collaboration with Rossini increased: on 22 May 1813 he sang Mustafà in the premiere of "L'italiana in Algeri" at the Teatro San Benedetto in Venice. Rossini then composed numerous other bass parts specifically for Galli. On 14 August 1814 he appeared in "Il turco in Italia" at La Scala; on 31 May 1817 (again at La Scala), in the very difficult role of Fernando in "La gazza ladra". The title role in "Maometto II" followed on 3 December 1820 at the Teatro
La forza del destino (1867). Following these productions, Verdi made further, more extensive revisions to the opera with additions to the libretto by Antonio Ghislanzoni. This version, which premiered at La Scala, Milan, on 27 February 1869, has become the standard performance version. The most important changes were a new overture (replacing a brief prelude); the addition of a final scene to Act 3, following the duel between Carlo and Alvaro; and a new ending, in which Alvaro remains alive, instead of throwing himself off a cliff to his death. The opera in this version is frequently performed in the world's opera houses today.