Bernhard Leitner
Immaterial Arching: Circular Space
1971-73
Sound tube

The inward arch of a passage architecture.
The construction of this tone tube from eight wooden posts with four loudspeakers attached to each was used to research parallel lapsing tone spaces. The loudspeakers are programmed transversely to the direction of walking. Whether Swaying Space, Circular Space or Arched Space: they do not refer to one single person but are measurable and can be experienced in the total length of the tube.