Fläche3 is an audiovisual real-time composition based on white circles on a plain black background. The circles are arranged on a fixed, invisible, rectangular grid of 44 x 44 center points. Their radii are modulated by data from sound analysis, such that organic patterns emerge in parallel with the music. The characteristic, quasi-spatial formality comes from a particular random function (Perlin noise). The movements are the result of both the sound analysis and live manipulation via knob controller.