Just noticed in the MIDI implementation chart that filter types are called only with odd numbers: 1, 3, 5, 7, 9, 11, and 13. I don't have my AH right here to test but I', wondering, may be there is something in the middle? Joke, I don0't think so, anyway any ones guesses why? Other parameters are called by odds and pairs numbers like Circuit, LFO, LFO MODE.
Just wondering, not big deal