OMG...this is VERY interesting. I'll be looking around for that as well. Thanks!!
TL...I have determined one thing. The Shango riddles are written in a song/play construction used in the Yoruba religion (Yoruba-Aruba...strange connection that). While Yoruba originated in Nigeria, it found its way into the Caribbean and Venezuala. Shango is of course one of the Yoruba deities.