So ending up with 20 or 40 pistons I have all the options I need to set registration and I see no need to pull stops while playing, so why have a touch screen? Am I missing something or is it just a matter of having fun and realism?
IMHO TScreens are only for fun and your approach is the most advanced one. Why?
- registering on a TScreen consumes a lot of attention apart from the haptic feeling when hitting a just a hard surface instead of a tab/drawstoop: one will have to control by eye if the hit was precise and the intended action is exed,
- what people call "registering on the fly" is necessary due to the lack settertechnique on older organs,
- "registering on the fly" may be used when improvising, but on bigger organs without setters is always very limited,
- on Theatre Organs, which have often more than 100 stops a registration change "on the fly" would be almost impossible. This is why they all have pistons, as now have all modern organs.
- registration changes IMHO have to be planned very carefully and normally are fixed in timing and stops. HW provides the possibility and storage to store them without limits. Why then try to do all this on a TScreen?
Rgds,
amun