 The importation of European and American 78 rpm records into Africa in the 1930s and 1940s (called G.V.Series records) featured much Cuban music, a style that was enjoyed by cosmopolitan Europeans and Africans alike.One writer has argued that this music, sophisticated, based on Africa music, and not produced by white colonialists especially appealed to Africans in general, and newly urban Congolese in particular.