This is the end result of a series of experiments into using Perlin noise to move trails according to the output of the FFT function. The reason it looks like a sun is because this experiment was motivated by the development of Aetheria.
This is as nice as I got it to look, after 4 days of experimentation. Most of the work went towards scrubbing the FFT output and interpolating the Perlin noise. The musical shutter effect was removed to emphasize the new features.
Available in HD on Youtube.