Most of the music of sub-saharan africa features what characteristic?

It features a characteristics a wide variety of instrumental ensembles. And this have a complex rhythms and polyrhythms with percussive sounds. Mbir is the known name of sub-saharan to the metal tongues or boo that attached to the sounding boards and this is often used in vocalist in Africa. 

eugene boudin greatly inspired claude monet's art.

12-bar blues chorus = a a b