Hello John,
I don't know if you've gotten your questions answered by now, I just noticed your post. Yes, you can save registrations in the songbook. What's nice about the songbook is that you can mix media into custom playlists that is, if you use SMF's. You can set up and save styles and programs, tempos, volumes, vocal settings for a specific song and save it to the songbook then to a custom list and on the same list have a midi file (which you can edit of course) for the next song within the same playlist. I would suggest you look at the manual and some of the demo videos on Korgpa.com. Also, check out the Korg PA800 forum.
Good Luck.
Ciao,
Jerry

[This message has been edited by Jerry T (edited 09-10-2007).]