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| Warsaw Autumn Warszawska Jesień | |
|---|---|
 Sculpture Warsaw Autumn (treble clef) by Karol Tchorek (1976) | |
| Genre | Experimental music, contemporary classical music |
| Dates | September |
| Location(s) | Poland |
| Years active | 1956, 1958–1981, 1983–present |
| Founders | Tadeusz Baird and Kazimierz Serocki, Head Board of the Polish Composers' Union |
| Website | warszawska-jesien |
Warsaw Autumn (Polish: Warszawska Jesień) is the largest international Polish festival of contemporary music. It was established in 1956 by two composers, Tadeusz Baird and Kazimierz Serocki, and officially established by the Head Board of the Polish Composers' Union. It is an annual event, normally taking place in the second half of September and lasts for 8 days.