The original work that inspired me is fantastic. I wanted so see if I could pull it off real quick and easy in SVG. Answer is mostly, but by the time I felt like going to bed, I realized that they used decreasing space between the lines, and mine was constant. Check the original, it's super relaxing to watch - it's quite a bit faster than mine though.
Original work: Generative Pattern Drawing: Optical Art with Lines (Made with code / Processing)