Overture and ballet music from the opera "Il vasallo di Szigeth "The Vassal of Szigeth") Overture and ballet music from the opera "Il vasallo di Szigeth "The Vassal of Szigeth") composer Anton Smareglia Main opus "Il vasallo di Szigeth" ("The Vassal of Szigeth"), opera in 3 acts, libretto by Luigi Illica and Francesco Pozza