One can create animated quadrature art by connecting the left channel of two-channel audio recordings to the X axis of an oscilloscope, and by connecting the right channel to the Y axis of the oscilloscope. I will begin to experiment with this in the next few days.
You mean the Lissajous patterns?
A colleague showed them to me some time ago. Fun to watch 
Here is a link to some quadrature art code that I will soon be using on my website. This code is a work in progress. My website will let people use their browsers to play music files that are on the visitor’s computer.
https://hubrisonics.com/services/hubrisonics-fft/hubrisonics-fft.js
you know about this right? https://oscilloscopemusic.com/ and all these (made with juce) https://www.soundemote.com/oscilloscopemusic
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