The Music of Kanem-Bornu
Ancient Mali, was not, really, an Art based, Civilization, but is one, 0f the most, famous, of African Civilizations (It being, rather political, in nature) [Ancient Mali, was heavily Islamic].
Kanem-Bornu and Songhai, were more, in line, with African Civilization.
Songhai:
http://www.youtube.com/watch?v=VpFRbFLoaO4