Il ballo delle ingrate

Il ballo delle ingrate (The Ballet of the Female Ingrates) is a semi-dramatic ballet by the Italian composer Claudio Monteverdi set to a libretto by Ottavio Rinuccini. It was first performed in Mantua on Wednesday, 4 June 1608 as part of the wedding celebrations for Francesco Gonzaga (the son of Monteverdi's patron Duke Vincenzo of Mantua) and Margaret of Savoy. Both Vincenzo and Francesco Gonzaga took part in the dancing. Monteverdi also composed the opera L'Arianna (to another libretto by Rinuccini) and the music for the prologue to Guarini's play L'idropica for the occasion.

Il ballo delle ingrate was published as part of Monteverdi's Eighth Book of Madrigals (Madrigali guerrieri, et amorosi) in 1638. This printed version probably contains revisions Monteverdi made for a revival in Vienna. The virtuosic bass writing for Plutone is closer in style to Monteverdi's late operas than to that of his Orfeo (1607). The musicologist Paolo Fabbri believes that the revisions were made for a performance to celebrate the coronation of Ferdinand III, Holy Roman Emperor in 1636. The sudden death of the previous emperor meant Monteverdi had to produce music at short notice, so he reworked Il ballo delle ingrate, removing the references to the Mantuan wedding.