Manufactures would need to be encouraged to adopt the Wersi & Bohm way (Or similar) as they can control external modules as if they were integrated into the instrument. (Probably unlikely though as the Arranger is designed as a standalone all in one)
Bill
Fully agree with you on this..
I think Wersi has done a great job at this..
Yet still there is no way to controll the ketron from the wersi, where it comes to full controll of the arranger parts..
Where its perfect to controll sounds..
The next step would be to use the arranger controlls to controll a module, or maybe even better both arranger parts at the same time