Serse January, the third by 6 February, and Handel put the finishing touches to the score on 14 February. "Serse" was first performed at the King's Theatre, Haymarket on 15 April 1738. The first production was a complete failure. The audience may have been confused by the innovative nature of the work. Unlike his other operas for London, Handel included comic ("buffo") elements in "Serse". Although this had been typical for 17th-century Venetian works such as Cavalli's original setting of the libretto, by the 1730s an "opera seria" was expected to be wholly serious, with no mixing of the genres of
Early music of the British Isles laid some of the foundations of later national and international classical music. Musicians from the British Isles also developed some distinctive forms of music, including Celtic chant, the Contenance Angloise, the rota, polyphonic votive antiphons and the carol in the medieval era and English madrigals, lute ayres and masques in the Renaissance era, which would lead to the development of English language opera at the height of the Baroque in the 18th century. Surviving sources indicate that there was a rich and varied musical soundscape in medieval Britain. Historians usually distinguish between ecclesiastical music, designed for use in church, or