lecra......If you mean recording a song using the style backings into the Easy Record option of the KN6000. When you save you have a choice of Technics or GM Mode, selecting GM will save the file as a MIdi File.
Unfortunately the KN's fall down badly here because all you will have are the notes you actually played yourself. None of the style backing tracks will have been saved to the Midi File, The backing parts go to a Control Track which when the File is save in Technics mode will then tell the keyboard what backing parts to play.
Graham UK