Yes, I Texted the Number on the Sign: artist Kate Bingaman-Burt interviewed a roof/gutter cleaner putting up colorful hand-painted signs around Portland https://katebingamanburt.substack.com/p/yes-i-texted-the-number-on-the-sign

Primer, an introduction to oscilloscope music: "what you see is what you hear!" the left and right audio channels control the beam on the X and Y axis, respectively https://www.youtube.com/watch?v=6DifrkaALOg