Between Pelléas et Mélisande and Riders to the Sea, which one has more acts?
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.
Ritter Blaubart Ritter Blaubart ("Knight Bluebeard") is a fairy-tale opera (German: "Märchenoper") in three acts by the Austrian composer Emil Nikolaus von Reznicek. Herbert Eulenberg wrote the German libretto, based on his own five-act play with the same title, which had been first performed unsuccessfully at the Lessing Theater in Berlin in 1906.