What has more acts: Riders to the Sea or Madama Butterfly?
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.
Transatlantic (opera) Transatlantic (aka "The People's Choice") is a Grand Opera in 3 acts by George Antheil written in 1928 to a libretto by the composer. It was premiered in Frankfurt on May 25, 1930. Though a critical success the work ran for only 6 performances and was not performed again during Antheil's lifetime.