As always, I feel like visualizations/"maps" like these always tell us more about the author's biases than it does explaining whatever musical categorization they wanted to explain.
At least Ishkur had fun with their descriptions :)
There are biases all over, hard to avoid; but even Fanshawe's problematic African Sanctus had more breadth and depth of Africa than this chart - and where's the Australian indigenous space-age lounge trip-hop FFS .. ;)
