Overture (from the French ouverture, meaning opening) in music is the instrumental introduction to a dramatic, choral or, occasionally, instrumental composition. During the early Romantic era, composers such as Beethoven and Mendelssohn began to use the term to refer to instrumental, programmatic works that presaged genres such as the symphonic poem.
Rozporządzenie Rady (EWG) nr 2658/87 z dnia 23 lipca 1987 r. w sprawie nomenklatury taryfowej i statystycznej oraz w sprawie Wspólnej Taryfy Celnej (Dz.U. L 256 z 7.9.1987, s. 1).