Here is the original writer performing Jin Go Lo Ba his way. The language is Yoruba. I was told it had something to do with a dance Nigerian women do. I have no idea if that is so.Yes, I would say so. Jingo seems like a good example of what I was describing of vocals that don't have much of a lyrical form and are there to support the instrumentation rather than as the centerpiece.
And yeah, it's pretty rockin'.