Here's something I wrote strictly for my own use, which I thought I would share for you to make of what you will. The Afro 6/8 has been one of my stronger vehicles for a long time; my approach has always been very Elvin-like- very whole-instrument- and I've recently been working towards more jazz-like freedom with my left hand and right foot. The coordination is an order of magnitude more difficult than in jazz, but just working with it should allow some new things to happen spontaneously even if it takes some time to get full conscious control over it.
One of the major features of African rhythm is that one pattern or one piece of music can be subject to a number of different primary pulses. What I've done here is present the same patterns as 8th notes in 6/8 and as 8ths and 16ths in 3/4, which puts the pulse on the "big" 3- equivalent to half notes in the original 6/8, or a half-note triplet if we were dealing with triplets in 4/4. It's difficult to conceive in the original 6/8, but very straightforward when we put it in a single measure of 3/4.
Get the pdf.