La serva padrona (The Servant Turned Mistress) is an opera buffa by Giovanni Battista Pergolesi (1710 – 1736) to a libretto by Gennaro Antonio Federico, after the play by Jacopo Angello Nelli. The opera is only 45 minutes long and was originally performed as an intermezzo between the acts of a larger serious opera. (The same libretto was set by Giovanni Paisiello in 1781.)
La serva padrona-intermezzo or opera buffa in two acts by Pergolesi; first performed, as was the custom, as intermission pieces between the acts of an opera seria. It contain only three roles: a bass, a soprano, and a non-singing part. It was very important in the history of comic opera.