I assume you're talking about Part l... I was delighted to hear Rodby playing an uptempo walking bassline as well. The unison line played by the trumpet and guitar is a kick, too.
I think my favorite moment is in part 2, where they come out of those chord arpeggios into the melody played by the harmonica (forshadowing the end with Richard Bona's vocals), then playing the same melody but switching to 5 underneath. Pretty cool music there.