Review of Spring 1984 performances by Chamber Ballet U.S.A. (Symphony Space, Apr 26-29) dancing Helgi Tomasson's Contredances and other works; Manhattan Festival Ballet (Emanu-El Midtown YM/YWHA, Apr 28-29, May 12-13, 26-27); and Feld Ballet (Joyce Theater, Apr 10-May 13) dancing Eliot Feld's Adieu, Intermezzo, and other works.