A few months back while I was looking for an organ mentioned in a video about historical organs used for accompaniment I stumbled across a modular pipe organ called the Wanderer Organo which I thought some of you might be interested in.
As far as I know there are two video's of this organ on Youtube. One is a rather average video of Mozart's Fantasia in F minor K 608, while the other is of a rather gloomy silent film version of Faust.
https://www.youtube.com/watch?v=HwftKHrfHn8
https://www.youtube.com/watch?v=OQXHQg5XUaU