Quote:

The Ketron SD2 does an internal RESET to GM everytime the power switch is cycled on, so I tend to doubt that the machine could be left in some state where it wouldn't receive or act on commands sent by BiaB.





My roland synth will not accept upper bank patches if it is already in GM mode (no matter how it got there).

Apparently BIAB does not send the sysex to put it into performance mode before it sends the patch information. Unless I manually reach over and push a button to exit GM mode and begin performance mode, any patch changes sent (even if accompanied by MSB/LSB) will set a GM patch

But this is the only hard synth I've ever owned, so I have no basis of comparison.

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0