Which opera has more acts, Riders to the Sea or Lucio Silla?
Riders to the Sea (opera) Riders to the Sea is a short one-act opera by Ralph Vaughan Williams, based on the play of the same name by John Millington Synge. The composer completed the score in 1927, but it was not premiered until 1 December 1937, at the Royal College of Music, London. The opera remained largely the province of students and amateurs until it entered the repertoire of Sadler's Wells in 1953.
L'italiana in Algeri L'Italiana in Algeri (] ; English: The Italian Girl in Algiers ) is an operatic "dramma giocoso" in two acts by Gioachino Rossini to an Italian libretto by Angelo Anelli, based on his earlier text set by Luigi Mosca. It premiered at the Teatro San Benedetto in Venice on 22 May 1813. The music is characteristic of Rossini's style, remarkable for its fusion of sustained, manic energy with elegant, pristine melodies.