Searching for what, exactly?
I seem to recall he spent a lot of time and money working with and supporting the Xhosa Organization in SA, and also recall he took part in a PBS musicology series --wonderful thing-- playing African instruments (even tried Tuvan throat singing, but that's another continent entirely). And didn't he also write Abiyoyo? I think the white boy is sufficiently sure of his roots.

Thanks for the information, everyone, this has been a fascinating read.
~JE