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.
Les fêtes d'Hébé Les fêtes d'Hébé, ou Les talens lyriques ("The Festivities of Hebe, or The Lyric Talents") is an "opéra-ballet" in a prologue and three "entrées" (acts) by the French composer Jean-Philippe Rameau. The libretto was written by Antoine Gautier de Montdorge (1707–1768). The work was first performed on 21 May 1739 by the Académie royale de musique at its theatre in the Palais-Royal in Paris..