In Italian - Le nozze di Figaro, ossia la folle giornata (The Marriage of Figaro, or the Day of Madness)
It is an opera buffa (comic opera) in four acts by Wolfgang Amadeus Mozart, with Italian libretto by Lorenzo Da Ponte, based on a stage comedy by Pierre Beaumarchais, La folle journée, ou le Mariage de Figaro (1784).
The overture is especially famous and is often played as a concert piece. The musical material of the overture is not used later in the work, aside from two brief phrases during the Count's part in the terzetto Cosa sento! in act 1.