I am far from a techie and had no problem running vArranger. I asked how to set up my midi in and out, plus how to assign the control keys for navigation and control, and that was answered by Dan in five minutes.

Believe me, I don't understand cc commands and the rest, but this is as simple as it gets.
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact