[diger44]

Hi, creator here,

I appreciate your feedback, my eventual goal of this site is to expand to concepts like directly using FFTs with arbitrary waves where your suggestion might be constructive, as yes circles on circles does make it seem more complicated than it is. One of the goals of this specific visualization was to demonstrate how fourier series relate to oscillators and sound, in which case a circle representing a frequency or set of tones added together made more sense.

For reference, I did not personally come up with this particular style of representing Fourier Series, I based it on this: https://commons.wikimedia.org/wiki/File:Fourier_series_squar... which is used on the main Wikipedia page about Fourier Series themselves.