1969
The Instrument transforms the sounds of the environment.
The instrument functions in response to hand movements.
The instrument reacts to sunlight.
The instrument is portable.
The instrument can be used any place and any time.
The instrument is for the exclusive use of the artist who created it.
The instrument permits him to attain virtuosity.
Krzysztof Wodiczko, 1969
A microphone placed on the forehead receives the sounds from the enviroment and transmits them to the electroacustic filters located intwo sound-proof shell-earphones. Filters are controlled by two photocells fastened to each hand. The moving of hands regulates the amount of light reaching the photoreceivers nad thus the intensity of filtering. When both hands are closed in fists (photoreceivers dark), the filtering device works at the top of its performance and no sound is heard. The right hand’s photoreceivers control the low-pitch filter. the left-hand’s photoreceivers control the high-pitch filter. The waving of hands creates the glissando sound effect.
