La Finta Semplice
La finta semplice (The Pretended Simpleton), K. 51 (46a) is an opera buffa in three acts for singers and orchestra, composed in 1769 by Wolfgang Amadeus Mozart, on a libretto by the court poet Marco Coltellini based on an early work by Carlo Goldoni. It was performed at the court of Palace of the Archbishop, Salzburg, 1 May 1769.
Mozart composed the music using the model of commedy started by Philippe Destouches with La fausse Agnès, ou le Poète campagnard (1734). The form of libretto includes the introduction, a duet and three finals.