The Barber of Seville The most serious distortion has been the upward transposition of the role of Rosina, turning her from a lustrous alto into a pert soprano." However, it has also been noted that Rossini, who frequently altered his music for specific singers, wrote a new aria for the second act for Joséphine Fodor-Mainvielle, a soprano who had sung Rosina in the 1818 London premiere, and sang the new aria c. 1820 at the Théâtre-Italien in Paris, where it was published. The singing lesson in act 2 has often been turned into "a show-stopping cabaret." Adelina Patti was known to include Luigi Arditi's
Opera buffa opera seria deals with gods and ancient heroes and only occasionally contained comic scenes, "opera buffa" involves the predominant use of comic scenes, characters, and plot lines in a contemporary setting. The traditional model for opera seria had three acts, dealt with serious subjects in mythical settings, as stated above, and used high voices (both sopranos and castrati) for principal characters, often even for monarchs. In contrast, the model that generally held for "opera buffa" was having two acts (as, for example, "The Barber of Seville"), presenting comic scenes and situations as earlier stated and using the lower male voices