Well, if I'm being honest, I have to agree with joesax.....100%. Although we play 'What you won't do for love' almost every gig, we play it very straight with heavy jazz/funk/blues-type solos played over that great horn riff which whoever is not soloing is playing softly in the background. Very cool. Very effective. But yeah, I've always thought of it as R&B quite frankly. Good R&B, but still R&B. Still it just goes to show how much overlap there is in different genre's of music, but it also shows the potential negative effect of putting too much emphasis on labels.

chas
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"Faith means not wanting to know what is true." [Nietzsche]