The 28-limbed Space-soundInstallation ‘TopophonicPlateaux’ (Fig. 8) which is staged with lighting consists of a 27-limbed loudspeaker ensemble with a computer controlled concert grand piano. The 28-channel Space-soundComposition was designed as a commission by the Donaueschinger Musiktage 1995, specifically for the Sternensaal concert hall in Donaueschingen, Germany. This Space-soundBody is characterised by three installation components (see Figure 8).
An outer circle – consisting of 15 loudspeakers – which starts at the right edge of the stage and ends at the left edge. The loudspeakers are positioned at heights which successively ascend and then descend again. The computer-controlled grand piano is located on the stage and thus, as the 16th limb, it completes the space-enclosing loudspeaker circle. The grand piano is triggered in real-time and is synchronised with the loudspeaker ensemble via the computer.
Two columns – each consisting of 4 loudspeakers -, which are positioned opposite each another in the inner space. The loudspeakers are staggered at different heights and radiate in different directions. The two loudspeaker-columns represent typical circumambulatory Space-soundBodies.Two columns – each consisting of 4 loudspeakers -, which are positioned opposite each another in the inner space. The loudspeakers are staggered at different heights and radiate in different directions. The two loudspeaker-columns represent typical circumambulatory Space-soundBodies.
Four loudspeakers, each of which is positioned on the floor in the corners of the space. This group of loudspeakers applies sound priming coats to the space and extends the loudspeaker circle described under component 1 to a 20-limbed enterable Space-soundBody.