Hi Walt,
I realize your question wasn't actually directed at me ( so sorry for butting in).

Depending on what you were actually planning to do, you'd treat songs ( midifiles) created in Band in a Box differently ie if you were going to create a style using BIAB you'd record it one way.
If you were going to use it as a song that you saved as a midifile for playback in the kn7 sequencer, you'd record it entirely differently ie you could record a complete arrangement using BIAB styles plus record a melody, save it as a midifile, load it into your kn7 sequencer, adjust the instruments volumes etc. and you've got a sequence.
You could leave out recording the melody line in BIAB and just save the arrangement as a backing track ( midifile). In this scenario you'd still load the midifile into your kn7, adjust the volumes and change instruments etc and the sequencer could play the backing and you can play along live. ( music minus one)

If you wanted to create a kn7 style from a BIAB style , that's a different procedure.
You wouldn't want chord changes in your style except for your intro's and endings. The rest of the style parts should really be recorded in just the key of c.

I've got a few ideas floating round in my head, just need to type it up in a way hopefully makes sense to others.

best wishes
Rikki
p.s. do you have BIAB and want to know how to create styles from it?