Aura calculata is a brand new sound sculpture by Tim Otto Roth: The waterorgan of 18 acrylic pipes with interacting waterlevels premiered this spring in the Städtische Galerie Offenburg. The documentary comprises interviews with the artist, the collaborating organ builders Jäger & Brommer, but also with Prof. Peter Weibel, the head of the Center for Art & Media, ZKM Karlsruhe. Camera: Alexander Weigand, Harald Götz, imachination projects; scenario: imachination projects; cut: Harald Götz. See also: pixelsex.org/aura .