Dee ihe ga-eso paragraf a - Mgbe a tọhapụsịrị anyị n'afọ 1945
egwú jazz na United States agbanweela, "bop" (ma ọ bụ bebop) ghọkwara ihe ọhụrụ. N'ịbụ nke e ji nkà ya, ịdị mgbagwoju anya nke ụda olu ya, na mgbanwe nke ụda olu ya mara, egwú bebop mere ka e nwee mgbanwe n'ụdị egwú. Ndị a ma ama n'oge ahụ bụ Dizzy Gillespie na Charlie Parker, ndị Europe matakwara ụdị egwú jazz ọhụrụ a mgbe e nwetara ihe ndekọ ndị America. Na Belgium, egwú swing nọ n'oge ya kasị mma. 'Nwanyị nke Swing' nke Belgium bụ Lucy Barcey. Ndị otu egwu De Kers, tinyere ndị ọzọ so ya.