John the songbook is a very powerful navigational tool and is what makes Korg arrangers stand out amongst the pack. For each Kb I own I make a folder and keep all info, help files, styles, smf, etc in it for later reference as you never know when you might need it again down the road. I hope to hear more tips on using the SONG BOOK Feature...especially using the Songbook Editor program because i have never used it and wondering is it worth it vs doing it "onboard the kb"?....