I ran into this translation problem years ago when I was running the KN5000 web site. It can be a challenging situation.

I found that midi patch numbers were often the same from one Technics model to the next. If we can determine the list of voices that the KN6500 added to the KN6000 list, we may be able to work up a patch number list from that. It would be much better, though, if some thoughtful forum member that has the KN6500 would volunteer the blue reference guide pages.

Still bashing them three or four days a week, Bill. When you are in your mid 80's it's more of a hit or miss sort of thing though.