I bought the PMI Organ as a replacement for the pipe organ in GPO. Not quite all that I had hoped for. It doesn't really have the bite of the Garritan libraries, but it is cleaner sounding and there are a lot of softer, less dense sounds -- which is what I needed most. The PMI organ must have had manuals with fewer keys, because some of the pieces I wrote that included GPO organ instruments go beyond its upper range, so I can't use it every place that I would have liked.
But what I most need is a basic tutorial on organ stops and how they are used. I read Terry Dwyer's excellent tutorial on the GPO organ. But the link for more detail on organ stops in general is dead and I can't find any more information. Unlike the other PMI instruments that I recently purchased, the organ included a user guide -- but it is mostly useless to someone who is new to organs. And the names of the stops haven't been translated into English, so it's hard to figure out what's what (except for a few obvious ones like the flutes and bassoon, where the spelling is similar to English). I am trying to identify the groups described by Mr. Dwyer (reeds, flutes, etc.) so that I know what is supposed to blend with what. I want to learn what the "rules" are before I break them (because I agree with the idea that, if you break them, there should be a reason).
I was disappointed that I didn't receive a response to these questions from PMI.