Le nozze di Teti e di Peleo is an opera

Opera

Opera is an art form in which singers and musicians perform a dramatic work combining text and musical score, usually in a theatrical setting. Opera incorporates many of the elements of spoken theatre, such as acting, scenery, and costumes and sometimes includes dance...

 by Francesco Cavalli

Francesco Cavalli

Francesco Cavalli was an Italian composer of the early Baroque period. His real name was Pietro Francesco Caletti-Bruni, but he is better known by that of Cavalli, the name of his patron Federico Cavalli, a Venetian nobleman.-Life:Cavalli was born at Crema, Lombardy...

 - specifically, an opera scenica or festa teatrale

Festa teatrale

The term festa teatrale refers to a genre of drama, and of opera in particular. The genre cannot be rigidly defined, and in any case feste teatrali tend to be split into two different sets: feste teatrali divided by acts are operas, while works in this genre performed without division, or merely...

. The work, set to a libretto by Orazio Persiani, was Cavalli's first opera, and was first performed at the Venetian

Venice

Venice is a city in northern Italy which is renowned for the beauty of its setting, its architecture and its artworks. It is the capital of the Veneto region...

 opera house Teatro San Cassiano

Teatro San Cassiano

The Teatro San Cassiano or Teatro di San Cassiano in Venice was the first public opera house when it opened in 1637. The theatre takes its name from the neighbourhood where it was located, the parish of San Cassiano near the Rialto. It was a stone building owned by the Venetian Tron family...

 on 24 January 1639. It is also the first Venetian opera for which a score survives to this day.

The plot is based upon the mythological tale of the wedding of Peleus

Peleus

In Greek mythology, Pēleus was a hero whose myth was already known to the hearers of Homer in the late 8th century BCE. Peleus was the son of Aeacus, king of the island of Aegina, and Endeïs, the oread of Mount Pelion in Thessaly; he was the father of Achilles...

 and Thetis

Thetis

Silver-footed Thetis , disposer or "placer" , is encountered in Greek mythology mostly as a sea nymph or known as the goddess of water, one of the fifty Nereids, daughters of the ancient one of the seas with shape-shifting abilities who survives in the historical vestiges of most later Greek myths...

. Cavalli's scenes of divine activity require elaborate theatrical staging, and his score calls for plentiful activity of both chorus (who portray such different characters as gods, Tritons, Bacchantes, and demons) and dancers

Ballet

Ballet is a type of performance dance, that originated in the Italian Renaissance courts of the 15th century, and which was further developed in France and Russia as a concert dance form. The early portions preceded the invention of the proscenium stage and were presented in large chambers with...

.

Roles

Role	Voice type	Premiere Cast, January, 1639 (Conductor: - )
Thetis Thetis Silver-footed Thetis , disposer or "placer" , is encountered in Greek mythology mostly as a sea nymph or known as the goddess of water, one of the fifty Nereids, daughters of the ancient one of the seas with shape-shifting abilities who survives in the historical vestiges of most later Greek myths...	soprano Soprano A soprano is a voice type with a vocal range from approximately middle C to "high A" in choral music, or to "soprano C" or higher in operatic music. In four-part chorale style harmony, the soprano takes the highest part, which usually encompasses the melody...
Jupiter Jupiter (mythology) In ancient Roman religion and myth, Jupiter or Jove is the king of the gods, and the god of the sky and thunder. He is the equivalent of Zeus in the Greek pantheon....	bass
Aeolus Aeolus Aeolus was the ruler of the winds in Greek mythology. In fact this name was shared by three mythic characters. These three personages are often difficult to tell apart, and even the ancient mythographers appear to have been perplexed about which Aeolus was which...	tenor Tenor The tenor is a type of male singing voice and is the highest male voice within the modal register. The typical tenor voice lies between C3, the C one octave below middle C, to the A above middle C in choral music, and up to high C in solo work. The low extreme for tenors is roughly B2...
Peleus Peleus In Greek mythology, Pēleus was a hero whose myth was already known to the hearers of Homer in the late 8th century BCE. Peleus was the son of Aeacus, king of the island of Aegina, and Endeïs, the oread of Mount Pelion in Thessaly; he was the father of Achilles...	tenor
Pluto Pluto (mythology) In ancient Greek religion and myth, Pluto was a name for the ruler of the underworld; the god was also known as Hades, a name for the underworld itself...	bass
Discordia Eris (mythology) Eris is the Greek goddess of strife and discord, her name being translated into Latin as Discordia. Her Greek opposite is Harmonia, whose Latin counterpart is Concordia. Homer equated her with the war-goddess Enyo, whose Roman counterpart is Bellona...	contralto Contralto Contralto is the deepest female classical singing voice, with the lowest tessitura, falling between tenor and mezzo-soprano. It typically ranges between the F below middle C to the second G above middle C , although at the extremes some voices can reach the E below middle C or the second B above...
Hymen	soprano
Momus Momus Momus or Momos was in Greek mythology the god of satire, mockery, censure, writers, poets; a spirit of evil-spirited blame and unfair criticism. His name is related to , meaning 'blame' or 'censure'. He is depicted in classical art as lifting a mask from his face.-In classical literature:Hesiod...	tenor
Mercury Mercury (mythology) Mercury was a messenger who wore winged sandals, and a god of trade, the son of Maia Maiestas and Jupiter in Roman mythology. His name is related to the Latin word merx , mercari , and merces...	tenor