KOSSO  - (Pterocarpus erinaceus) also known as Barwood, African Kino Tree, Muninga, Vène and Mukwa.  It's native to the Sahelian region of West Africa.
Heartwood color ranges from yellowish to rosy reds and rich browns, Sapwood is clearly visible being a pale off white.
Common uses are musical instruments (djembe, kora), furniture, and charcoal.