Jim, first I should say that I do not have an answer for your specific question. I do have Notation Composer and use it occasionally for lead sheets. It can convert a midi file to notation and does a pretty good job, including interpreting chords. But my experience with converting any song that has any "feeling" in the sequence to a midi file, creates an enormous list of notes of various sizes in timing. There is a quantize function that reduces a lot of the extraneous notes but there is still a lot of editing to do.

I think I understand what you are trying to do and I do not know how well the KN7000 saves composer files to midi. But I assume that the rhythm styles also use a certain degree of feeling which could result in a lot of extraneous notes. My work in the past has almost always resulted in manual notation because of the high degree of editing required for notation created from midi files.