Sound created from using the rings of Saturn as a spectral source to a series of filters. When a 1 pixel high image of the rings is extracted it looks like a spectrogram (original: https://en.wikipedia.org/wiki/File:Saturn%27s_rings_dark_side_mosaic.jpg).
The ring spectrogram was divided into three color planes, and the color intensity values were transformed into resonant filter cutoff frequencies. In essence one filter unit (per color plane) has 256 sounds playing simultaneously. The individual filters are placed along the x-axis so, that the stereo image consists of 256 steps from left to right.
In this sound of the series the spectrum was compressed to a range of 20 -500 hz. A small variation in certain divider factor per color plane is introduced for a slight chorus like effect.