Ruggero (or Ruggiero) Leoncavallo (UK: LAY-on-kav-AL-oh, US: LAY-ohn-kə-VAH-loh, -⁠kah-, Italian: [rudˈdʒɛːro leˌoŋkaˈvallo]; 23 April 1857 – 9 August 1919) was an Italian opera composer and libret...