You are right jm_bogey. Not much has been said about polyphony. Many of the complex voices, like some organ sounds, often caused note drop outs for me when I had 64 note polyphony with the KN5000. It was primarily the limit of 64 note polyphony that kept me from buying the KN6000/6500. I have not experienced a single situation with the KN7000 where note dropouts have occured. I even tried to use sustain with complex voicing to force dropouts and didn't succeed. I'm sure that with enough effort you could run out of polyphony but I am totally satisfied with the 128 note capability of the KN7000.