Luceafărul

  • Opera in one act with prologue and epilogue.
  • Libretto by the composer after the homonymous poem by Mihai Eminescu
  • World Premiere: February 2, 1921, at the Romanian Opera, Cluj.
  • First performance in Hungarian: February 15, 1921, at the Hungarian Theatre, Cluj

Golem Lázadása

  • Opera in one act

  • Libretto by the composer after a play by Illès Kaczèr

  • World premier: December 23, 1924, at the Hungarian Theatre, Cluj

Horia

  • Opera in 3 acts and 7 scenes
  • Libretto by the composer after the hymonymous tragedy by Ghiţă Popp
  • World Premiere: January 24, 1937, at the Romanian Opera, Cluj

Arald

  • Opera in one act with prologue
  • Libretto by the composer after Mihai Eminescu's poem "Strigoii"
  • World Premiere: May 12, 1982, at the Romanian Opera, Iaşi

Eroii de la Rovine

  • Opera in one act
  • Libretto by the composer after "Scrioarea III" by Mihai Eminescu
  • World Premiere: January 24, 1935, at the Romanian Opera, Cluj

Különös Szèder-Est

  • Mystery play for Passover to texts from the Haggadah in Hungarian
  • World Premiere: September 8, 1974, Bradley Hills Presbyterian Church, Bethesda, Maryland, U.S.A.