Thanks to forums user kerlin for sending this in! They write,
This was mounted on an eight foot pole at a regional burning man event in the midwest.
It’s currently on “autopilot” running my own visualization code via the FastLed library because I had problems with the bass continuously chattering when I tried to steal code from the Piccolo project to make it sound reactive. 🙂
64 strands of 3mm side lit fiber optic cable from here wiedamark.com/fiberopticsolidcoresideglow.aspx