Space simulations systems basing on the latest digitals technologies allow a new method of the performance of programmed music. Through a special algorithm of simulation the acoustical reaction of any random or programmed closed spaces is imitated and can be combined according to the compositional principles with the acoustical parameters of the cathedral.
The computer-acoustical music already employed in the disc recording of "THE SERMON ON THE MOUNTAIN" will be newly dimensioned at the performance in the cathedral by the "SPACE-WITHIN-SPACE EFFECTS".
So the conscious shaping of acoustics becomes a determining element of composition. The sound space "Cathedral" is brought to an accordance with the sound space "Composition".
While the natural change of light and shadow visually changes the interior of the cathedral, this conception of the "SERMON" wants to give more expressiveness to the sounds in the Linz Cathedral by the means of computer acoustics, wants to evoke certain moods with the listener, wants to fascinate acoustically as well as it wants to bewilder.
Until now organ, strings, trumpets, choirs and - if it was to be "modern" - percussion were to be heard in churches.
The instrumentary of the music computer, speech computer, sound stations and live sound mixing units is new to music in churches. Real sounds within irreal spaces and vice versa - a step into imagination and meditation of sound.
