Thank you Alec for your helpful and clear answer. I understand the possibilities.
For his question about the background vocal together with MIDI, I think for myself: why one would?
To my opinion one can record midi (output) and background voices at the same time, and use it then as an mp3 to play it on the kn7?
But techically spoken, is it possible to let play midi in KN's sequencer (and play along) together with a mp3 on the KN7?
It is difficult to explain another question, but I hope I made myself clear ;-)
Cees