[sdiy] MIDI2CV Aftertouch & Continuous controller types choice..

[Louis van Dompselaar]

The GEM S2 and S3 were also, switchable between channel and poly AT,  
but never both at
the same time.

> Yes, but as Dave wrote, it's probably fine just to read mono  
> aftertouch. If your device is in mono mode, you'd have to ignore the  
> note information in the poly aftertouch messages anyway.
> I once owned a Roland A-80 masterkeyboard. This could send poly and  
> mono aftertouch alternatively, but never both at the same time. I  
> don't know how other keyboards capable of poly aftertouch handle this.