I plugged my synthesizer into the x and y axes of an oscilloscope device and turned the knobs for fourteen minutes.
If you are sensitive to flashing lights, please do not watch this video at all.
Also maybe it would be a good idea to turn down the sound if you don't like ugly noises but it's really fascinating to watch how the sounds trace the light across the screen. However if you like whining screeches, repetitive pops, weird howls and growling hums, please turn up your volume and put on headphones. Delicious.
https://oscilloscopemusic.com/
https://jerobeamfenderson.bandcamp.com/album/oscilloscope-music