What is canzonetta sullaria in shawshank redemption?

In "The Shawshank Redemption," "Canzonetta sull'aria" is an aria from Mozart's Opera "The Marriage of Figaro." It plays during a pivotal scene when Andy Dufresne broadcasts music over the prison's loudspeakers, creating a moment of beauty and hope for the inmates. This piece serves as a symbol of freedom and the enduring power of art, contrasting the bleakness of prison life. It highlights Andy's defiance against the oppressive environment and his ability to uplift others through music.