L’occasione fa il ladro, ossia Il cambio della valigia is a one-act farce by Gioachino Rossini, with a libretto by Luigi Prividali, first performed in Venice in 1812. The plot revolves around the reckless Don Parmenione and Count Alberto, both of whom are caught in a storm at an inn whilst Alberto is travelling to meet his betrothed, Berenice, of whom he possesses only a portrait. A chance mix-up involving identical suitcases allows Parmenione to come into possession of the girl’s documents and portrait; struck by her beauty, he decides to seize the opportunity and pretend to be the Count in order to win her over. Meanwhile, the faithful Ernestina – a young noblewoman who loves Parmenione and has followed him disguised as a maid – tries to unmask him, aided by the valet Martino.
In the single act, the misunderstanding comes to a head: having presented himself at Berenice’s house as Alberto, Parmenione clumsily courts the girl, who is unsettled by the strange behaviour of her self-styled fiancé. The arrival of the real Count Alberto throws everyone into utter confusion, until Ernestina, revealing her true identity, exposes the deception and publicly declares her love. Moved by the girl’s loyalty, Parmenione comes to his senses; Alberto and Berenice recognise one another, whilst Parmenione marries his beloved Ernestina. To everyone’s amazement, the ‘opportunity’ that the thief had seized turns into an unexpected source of happiness, and everyone celebrates the conclusion of their adventures with a lively choral finale.

Product details
- Publisher : Omnia Musica
- Publication date : July 11, 2026
- Edition : Burletta Per Musica in Un Atto ed.
- Language : Italian
- Print length : 74 pages
- ISBN-10 : 1805409611
- ISBN-13 : 978-1805409618
- Item Weight : 3.35 ounces
- Dimensions : 5.5 x 0.15 x 8.5 inches