Has anyone downloaded the "Miditzer" (cross between Midi and Wurlitzer) virtual theatre organ. It represents a typical two manual 8 (?) rank theatre organ which can be played from the computer keyboard in a limited fashion or by using the mouse to change registrations, pistons, etc.,

It can also be played by connecting to a Midi Keyboard or midi-ed organ.

Without going into details HERE, complete consoles 2, 3 or 4 manual have been constructed around virtual instruments - on the same lines as "Hauptwerk"

I have it, its not bad considering its free - I hook a midi keyboard up to it when i want to use it, has a fair number of stops too.