Hi , saw the clip a week or so ago. I don’t have a clue what he was talking about as far as Ketron sound goes. Tried changing the style extension to .mid, that did work, but I couldn’t change it back after editing . ( Sokratis on psr forum post , said not necessary, it can load as .mid , if I understood him correctly.)
The guy is making some pretty big claims, and as far as I could tell, doesn’t have access to one at time of making video.