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
Opera in German music, "Singspiele" were no match for contemporary opera serias in artistic sophistication. A milestone of German opera was Anton Schweitzer's "Alceste", with a libretto by Wieland, premiered in 1773 in Weimar. At the end of the 18th century a composer who would change all this would emerge: Wolfgang Amadeus Mozart. As music moved into the Classical era in the late 18th century, most German-born composers still avoided writing opera in their own language. The great figure of the early Classical period was Christoph Willibald von Gluck but his pioneering reforms were directed at Italian and French opera, not the German