Well done, John. You even gave us some bonus songs after New York, New York. I enjoy Aint Misbehavin' and play it a lot. Sounds like your record (or mike) volume level may be too high which may be causing the distortion that you mentioned. Couldn't tell if it was overdrive or inter-modulation distortion. Are you using the S900 voice processor for the harmony voices? And, are you using a foot switch to turn the harmony on and off?