Have You Seen Triumvirat Live?

https://www.youtube.com/watch?v=GUr_UBndhD8

[Jürgen Fritz speaks:] This is an air-resistance organ, which we bought during our last tour in Berlin.  They are available as installable sets for various models of cars.  Actually it's enormously practical, because on a long tour one can practice while travelling; and if something, a composition, occurs to me, I can immediately play it.  [Gestures to Hans Bathelt, who is driving]  Hey, Bubu, stop a minute, we want to show how it works.  [The car stops and Jürgen Fritz opens the side door.]  Now this is the keyboard of the air-resistance organ, and at the front [cut to view of front of van] is the air intake, [cut to view of hose] which goes through this thick hose into the organ, which can then be operated.  Naturally, one can buy installable sets for all kinds of vehicles; you lay the hose in with two or three screws, [view of hands on keyboard] and then you can play.  The whole thing is actually a fairly simple matter.  Now this is how we do it:  Most of the time we drive at night, because then we have enough speed to provide enough air so that the organ functions properly.  When you're driving in a city you have to keep stopping, then there's no air flow, and then no sound.  Bubu here has a sense for the right speed to provide enough air so that the instrument works well.  I can only say, try it yourself, the air-resistance organ is a neat thing.  Bye, see you later!  [Jürgen Fritz closes the door] [view of hands playing the organ] [view of the van driving]