In the 19th century Eastern Europe provided some of classical music’s biggest guns, but its record is less remarkable this century–especially in the three decades after the end of World War II, during which musicians behind the Iron Curtain found themselves more or less toeing the party lines. Now that the cold war is over, there are strong signs of creative fervor and individualistic music-making in the region. In this recital the performance collective Cube will present recent chamber works by some of the Young Turks. From Milko Kelemen of Yugoslavia, there’s an oboe-piano duo in the vein of Heinz Holliger; from Michal Pleska of Czechoslovakia (who’s now pursuing a doctorate in music at the University of Chicago), solo piano miniatures that are exercises in atonality; from the very prolific Violeta Dinescu of Romania, a daunting work for flute and guitar that belongs to a fledgling European aesthetic dubbed the “new simplicity.” Poland is represented by two avant-gardists of different generations: from Witold Lutoslawski, Eastern Europe’s foremost (and oldest) serialist, the oboe-piano duo Epitaph, and from Wlodzimierz Kotonski, a colorful short piece for solo oboe. Also on the program are Bela Bartok’s Rhapsody I and assorted Czech dances for piano. Caroline Pittman and Janice Misurell-Mitchell play flutes; Patricia Morehead plays oboe and English horn; Jeffrey Kust plays guitar; and Philip Moreheard plays piano. Thursday, 12:15 PM, theater, Chicago Cultural Center, 78 E. Washington; 744-6630.