I run a Sunday do at a bar in the back end of nowhere in Warrington, have done for three years now - and the above examples are very much the road I go down, alongside some Patrice Rushen, Players Association, Webster Lewis etc.
There is very rarely a person in there that understands, or even knows the music that is played but it's busy more often than not - and there's always curiosity about the music.
I believe you have to give normal people (?) something to get a hold on with soul music, something half obvious occassionally does it, I'm sure you know anyhow, it allows them to make more sense of what's being played.
(I hope no ones sucking eggs )