Didn't listen when Mike Raven was presenting, but when it came back early 70s it had a different presenter, whose name I can't remember , played a mix of everything. Notably though he used to do a call to the US every week to the R&b Stations for their top spins of the time-one of the DJs, whose name kinda stuck---E.Rodney Jones.
And yes obviously Andy Peebles Soul Train on Piccadilly Radio, later taken over by Mike Shaft.
ATB
Tony