Se vuol ballare
The cavatina "" is an aria for baritone or bass from the first act of the opera "The Marriage of Figaro" by Wolfgang Amadeus Mozart. The libretto was written by Lorenzo Da Ponte based on a stage comedy by Pierre Beaumarchais, La folle journée, ou le Mariage de Figaro (1784). The Italian title means "If you want to dance".
Leonora (opera)
Leonora, ossia L’amore coniugale ("Leonora or Conjugal Love") is an opera (specifically a "dramma semiserio") in two acts by the Italian composer Ferdinando Paer. The libretto, by Giovanni Schmidt, is based on "Léonore ou L’Amour conjugal" (1794) by Jean-Nicolas Bouilly, which was also the source of Beethoven's "Fidelio". Beethoven himself owned a score of Paer's opera and it is believed to have had some influence on his work. "Leonora" was first performed at the Kleines Kurfürstliches Theater, Dresden on 3 October 1804 with the composer's wife singing the title role.