Sposa son disprezzata - Geminiano Giacomelli / Vivaldi

The famous aria "Sposa son disprezzata" is heavily associated with Antonio Vivaldi, but he did not compose the original music. The melody was originally written by Geminiano Giacomelli for his 1734 opera Meropeunder the title "Sposa, non mi conosci".

 Vivaldi compiled Giacomelli’s aria into his 1735 opera Bajazet. It was a common 18th-century practice called a pasticcio, where an opera's score was pieced together using works by multiple composers.