Sorry, Comalite J, I guess Stevie is not the only one who is blind. By the way, to use a touch screen as a controller, you do not have to read it. It would be just like the cursor pads on laptop computers. For the button functions on touch pads, maybe a first touch would cause the keyboard to read the name of the button pushed, while a second push would activate it.

Anyway, I have another idea. My PSR-8000 has a bevel that extends in front of the keys. It would be a good place for a long pressure-sensitive ribbon controller. This would add two dimensions of control. I think, with one or two fingers on lead, the right thumb can operate the ribbon controller. For times when that does not work, the left hand can operate the ribbon. At least in some cases, there would be three dimensions of continuous control with both hands on the keyboard.

None of my ideas, replace the "Coma" 6-D controller, though. I assume it would be at the left side of the keys, where the pitch and mod wheels usually are.