This answer can't be conclusively answered since theres very little african traditional and contemporary art viewed, discussed and appreciated in a global setting.
So answer to what is African Art? We simply don't know!
Not for long at list. Kayaa an online art gallery in Nairobi (Kenya) is trying to change this and you can too. Support our project on kickstarter to make an online art community of African artists a reality and a norm.Theres too much that is yet to be explored and we need to get to these artists, smoke them out of their comfort zone and into the global arena.
Are you with me? Then lets rally for this exciting cause.
and the blog as well