[PLUG] MuseScore and GrandOrgue?

[Dick Steffens]

Anybody musicians using MuseScore with GrandOrgue and JACK?
I have all three installed on my Xubuntu 20.04 machine. I've been trying 
to follow the instructions at:

https://musescore.org/en/node/270844#Introduction

As often happens, the instructions are similar to, but not exactly what 
I find in my software. And I don't get the expected results. So, 
hopefully one or more of you are musicians and can point me toward 
better documentation.

Thanks.

--
Regards,

Dick Steffens