L’Orfeo is an opera, by Claudio Monteverdi, with a libretto by Alessandro Striggio. It is based on the Greek legend of Orpheus, and tells the story of his descent to Hades and his fruitless attempt to bring his dead bride Eurydice back to the living world. It was written in 1607.

The Gonzaga court, Monteverdi’s employer, had a long history of promoting dramatic entertainment. In 1600, while visiting Florence for the wedding of Maria de’ Medici to King Henry IV of France, Duke Vincenzo attended the premiere of Peri’s Euridice. It is likely that his principal musicians, including Monteverdi, were also present at this performance. Also present was Alessandro Striggio.

When Monteverdi composed L’Orfeo he had a thorough grounding in theatrical music. He had been employed at the Gonzaga court for 16 years, much of it as a performer or arranger of stage music. By the early 17th century the traditional intermedio—a musical sequence between the acts of a straight play—was evolving into the form of a complete musical drama or “opera.” Monteverdi’s L’Orfeo moved this process out of its experimental era and provided the first fully developed example of the new genre.

In his published score, Monteverdi lists around 41 instruments to be deployed with distinct groups of instruments used to depict particular scenes and characters. Thus strings, harpsichords, and recorders represent the pastoral fields of Thrace with their nymphs and shepherds, while heavy brass illustrates the underworld and its denizens. Composed at the point of transition from the Renaissance era to the Baroque, L’Orfeo employs all the resources then known within the art of music with particularly daring use of polyphony.

Each act of the opera deals with a single element of the story and each ends with a chorus. Despite the five-act structure, with two sets of scene changes, it is likely that L’Orfeo conformed to the standard practice for court entertainments of that time and was played as a continuous entity, without intervals or curtain descents between acts. It was the contemporary custom for scene shifts to take place in sight of the audience; these changes were reflected musically by adjustments in instrumentation, key, and style.

While Jacopo Peri’s Dafne is generally recognised as the first work in the opera genre, and the earliest surviving opera is Peri’s Euridice, L’Orfeo is the earliest that is still regularly performed.

(Wikipedia)