You could well be right Mark, having never owned a Tyros or tried using one as a controller I had a quick look at the specs, saw the USB to Host feature 9 sliders and assumed they, and the other buttons would send midi.

I am used to controllers where it's a given and forget the midi limitations of most 'hardware' boards.

Maybe there is someone who is familiar with the midi transmit features of the Tyros and can help out.

MainStage 3 | Axiom 61 2nd Gen | Pianoteq | B5 | XK3c | EV ZLX 12P
Hoping everyone stays safe and well and sees this through to the other side