The World of Opera

L'oca del Cairo (The Goose of Cairo or The Cairo Goose, K. 422) is an incomplete Italian opera buffa in three acts, begun by Wolfgang Amadeus Mozart in July 1783 but abandoned in October. The complete libretto by Giovanni Battista Varesco remains. Mozart composed seven of the ten numbers of the first act, plus some recitative, as well a sketch of the finale (lost); the extant music amounts to about 45 minutes.
 

Mozart's correspondence shows he wanted to write a comic opera to a new text for the Italian company in Vienna. He had only just met Lorenzo Da Ponte, who would later pen the libretti for several of Mozart's most successful operas, but Da Ponte was not available, so Mozart turned to Varesco, librettist for Mozart's earlier opera Idomeneo. Mozart's urgent need of a poet is attested by his willingness to work with someone, who in his opinion had "not the slightest knowledge or experience of the theatre". Eventually Mozart realized the hopelessness of the project and abandoned Varesco's libretto after six months because of its silly ending, a farcical travesty of the Trojan Horse legend.

Several versions have been prepared by adapting other music. The first performance (in concert) was in Frankfurt in April 1860 with numbers taken from Lo sposo deluso and some concert arias.
 

The first stage performance was given on 6 June 1867 in Paris at the Théâtre des Fantaisies-Parisiennes in a 2-act French adaptation, L'oie du Caire, by the Belgian librettist Victor Wilder, who added a new conclusion, and a musical arrangement by the conductor, Charles Constantin, who orchestrated the music and added other pieces by Mozart to complete it.

​