Hi Giovanni,
I haven't forgotten about your request, but at present, I have my teenage Granddaughter staying with me, during her summer holiday and most of my time is taken up keeping her amused

I will be taking her back home this weekend and staying with my Daughter for a few days and when I retun home, I'll be able to spend some more time with my KN7000.
However, some time ago, I did a sequence of 'Time is Tight' and it's on my website in KN7000 format (Songs 4U Volume 7) and in WMA format on the 'WMA File Downloads' page.
Having had a look at the way it was recorded, it did not need any special 'tweaking' for the Bass part - the KN7000 implemented it just fine, so it is not really a good subject for demonstrating the 'special' technique for the Bass part.
I think a good tune for demonstrating the procedure, would be 'Tuxedo Junction' since none of the KN7000 styles are capable of producing a correct Bass part for this number. I'll get to it when I return home around the 5th/6th September.