Andy is such an amazing musician. I've only seen informal clips of him playing this tune posted by others (and no one is credited as the writer so I assume it is one of his originals). He plays it on a biggish 2.5 row diatonic, which is still easily 6-7 lbs lighter than my CBA. I knew the harmonic flexibility of going Chromatic came at the expense of being able to those lovely rapid rhythmic pumps afforded by a smaller box. I won't ever be able to quite replicate them on mine, but I still look longingly at a lot of their tunes and here I try to mimic / suggest the pulsing beat with bellows and articulation.