Hi Andrea: I agree that playing the arranger is definitely 'an art all its own'. My old Technics KN5000 worked similar to the Ketron method where you have to press 2 buttons to activate both the fill and then the new variation when going to a 'non' neighboring variation. I was able to manage (abeit with difficulty & some misfires) this on the KN5000, but after discovering HOW MUCH easier & more dependable it is to accomplish the same thing on the Yamaha arrangers, I don't think I want to go back to the old awkward method again. It's tricky enough to coordinate playing the keyboard in concert with having to do double duty pressing the other arranger functions (multipad buttons etc), so I prefer Yamaha's simpler more streamlined one button push approach to accomplish the SAME thing. Just my opinion of course.

Scott