Hi Fred,

The 'mod' wheel is actually the volume control, and this is one of the differences with GPO. So in your Composer scores, the first thing you need to do is to add a 'mod' wheel command to each channel you are sending out to GPO, otherwise it will sound very soft.

Mark has a very good section in the notes on GPO about how volume, loudness and the mod wheel all affect the end result. You need to be aware of this to get a good sound out of GPO - but you probably won't get that far today. The 50% I suggested is just for testing, otherwise you may not have heard anything when you did the simple test.

I'm puzzled that the right click on the GPO didn't work for you. This is what I get when I right click (no left click)on that same link:



Cheers ... Clyde