At first we want to finish the TKB, normal keybaord and the control

> box (wheels/joystick/buttons) and then turn into the design of the
> additional controller that still needs a lot of discussion.

Here's one more suggestion for the additional controller: it would be
nice if it could communicate via midi with Scala software. Then you
could upload tunings or scales.

I have no idea if this fits into the concept, but Scala is interesting
anyway, and free.

More about Scala at http://www.xs4all.nl/~huygensf/scala/

Greetings

Anton