 The former two are the least traditional-sounding of the styles, while the latter two styles incorporate elements of urban and more rural music.Released prior to the more commercially successful "Graceland" by Paul Simon, it was one of the first albums of contemporary South African music to be widely available outside the country.The album has been re-released several times and also spawned a succession of later volumes in the Indestructible Beat series, released by the Earthworks label.