Thank you for the "I Can See Clearly Now".

Here are the styles I've come up with that seem to match both Al Green's "Let's Stay Together" and also Marvin Gaye's "What's Going On"...

1) Cool 8 Beat
2) Kool Shuffle
3) Jazz Pop

and to a lesser extent, "Motor City" (Variation C), and "Gospel Brothers" (Variation A)