rob paparozzi does a sweet version of this, too. i also have a muddy watersOne of my first favorite harp tunes was Butter's version of this. I heard the Cannonball original before Clarke's. I now listen to all three pretty often. ;) While Clarke's approach is different from Butter's (not just in instrumentation) I think it's interesting to note that he essentially sticks with Butter's simplified, bluesier version of the head, instead of using the chromatic's, well, chromaticity, to play the head as originally "written."
-- We make a living from what we get, but we make a life from what we give. - Kathy Moser