Adriano in Siria ("Hadrian in Syria") is an 18th-century Italian opera seria in 3 acts by the Czech composer Josef Mysliveček. It was composed to a libretto of the same name by the Italian poet Metastasio that was first performed in 1732 with music of Antonio Caldara and in more than 60 further settings until 1828. For a performance in the 1770s, it would only be expected that a libretto of such age would be abbreviated and altered to suit contemporary operatic taste. No other of the composer's settings of Metatasio's texts contains as many substitute aria texts as this one does. The cuts and changes in the text made for the 1776 performance of Mysliveček's opera are not attributable. Performance history The opera was first performed at the in Florence on 8 September 1776 as the last dramatic composition he produced for the musical public of that city. The electoral court of Munich intended to engage Mysliveček to compose an opera for the carnival season of 1776, but the composer found himself unable to travel due to the effects of syphilis. He remained in Florence for an extra year, but made remarkable use of his time. He was able to see productions of his new oratorio Isacco figura del redentore (perhaps his greatest composition) during Lent of 1776 and the opera Adriano in Siria in the autumn. He also came into contact with the Florentine music publisher Ranieri del Vivo, who published a number of his orchestral works, including a collection of his symphonies that constituted the first anthology of symphonies ever published in Italy. The opera was very successful, in particular the music written for the tenor singer Giovanni Ansani, and was revived in Perugia for the carnival operatic season of 1777, then in Pavia in the spring of the same year. The outstanding aria for Ansani was "Leon piagato al morte," which was widely disseminated in manuscript form in the 18th century. Mysliveček's friend and close professional associate, the noted castrato Tommaso Guarducci, repeated his role of Farnaspe in the Perugia production. Roles Vocal set pieces Act 1, scene 1 – Aria of Adriano, "Dal labbro, che t'accende" Act 1, scene 2 – Aria of Farnaspe, "Cari affanni, amate pene" [a non-Metastasian text] Act 1, scene 3 – Aria of Osroa, "Chi della sorte infida" [a non-Metastasian text] Act 1, scene 5 - Aria of Farnaspe, "Dopo