https://www.youtube.com/watch?v=kTNO0a9WtFo
https://hackaday.com/2017/01/22/a-violin-bow-lightsaber/
-frequency determines the color of the LED:
high freq: red LED
low freq: blue etc.
shows on the monitor behind our performance, serves as a interactive background while audiences can enjoy music and visuals that are interactive
something like this but more visually appealing, animation, patterns etc.
changes the pattern when hearing frequency change from the violin/cello