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
American classical music of the immediate environment of the audience, thus extending the definition of music to consist of any and all sounds even though they are without a composer created structure. Another more current, example of Postmodern music is that of American composer Miguel del Aguila who blends American idioms with those of his Hispanic, Latin American roots. In the 20th century, Incidental music saw new heights with the development of the full orchestrated Film score. Drawing from the opera styles of composition and the rules of Richard Wagner (specifically the idea of Gesamtkunstwerk), many early soundtracks include Overtures, Intermission Music, and