DESCRIPTION:
two transparencies with simple black and white patterns are moved by hand to create visual interference patterns--a moire effect--that is translated into sound as wave-shaping distortion: as the interference pattern becomes more complex, harmonics are added to the sound, and as the visual pattern becomes simpler (separates into lines) harmonics are subtracted, leaving a pure tone.

thank you to tom and janeva (sonoptik) for organizing the concert and shooting the video!