Events in Music History in 1840
- Feb 11 Gaetano Donizetti's opéra comique "La Fille du Regiment" (The Daughter of the Regiment) premieres at the Salle de la Bourse in Paris, France
- Apr 13 William Henry Lane ("Juda") perfects tap dance
- Dec 2 Gaetano Donizetti's opera "La Favorita" premieres in Paris