Korg and save your sequences as SMF (standard midi file) type 1 (separate tracks) rather than SMF type 0 (zero) which is a combined format; by using type 1 they are already separated. Then put the floppy disk into the Mac drive and load/import (I don't remember exactly which it is called in Logic). Once the midi file is into logic, assign whatever internal Logic sounds you want to each midi channel and then edit to your taste.