What Austro-Hungarian composer helped produce "Princess Flavia" and "New Moon"?
Sigmund Romberg Sigmund Romberg (July 29, 1887 – November 9, 1951) was an Austro-Hungarian composer who spent most of his adult life in the United States. He is best known for his musicals and operettas, particularly "The Student Prince" (1924), "The Desert Song" (1926) and "The New Moon" (1928).
Jan Václav Voříšek Jan Václav Hugo Voříšek (] ; "Johann Hugo Worzischek", 11 May 1791, Vamberk, Bohemia – 19 November 1825, Vienna, Austria) was a Czech composer, pianist and organist.