How is there a way I can make my own auto accompaniment for songs like the way the the ORIGINAL song is played like if I wanted to do BILLIEJEAN BUT WITH THE BASSLINE THE WAY ITS PLAYED ON BILLIEJEAN EVEN WGEN THE CHORD'S I WOULD STILL HAVE THE BASSLINE FROM BILLIEJEAN CUZ ALL THE OTHER KEYBOARDS COME WITH THEIR ONN RHYTHM AND BASSLINE WHAT IM SAYING IS WHEN I PLAY A SONG ANY SONG I WANT TO USE THE ORIGINAL BASSLINE FROM ANY SONGS I PLAY NOT THE PRE PROGRAM RHYTHMS IN A KEYBOARD THANKS