Setting an oscilloscope to X-Y mode and displaying images like rotating cubes and so on has been around for years. If the frequency being used to generate the images was in the audio range and you had a speaker connected you would also be able to hear tones generated alongside the images on the scope. A person by the name of Jerobeam Fenderson has taken this concept to the next level and actually started out with a song and then encoded it with images that can be displayed on an oscilloscope.
Check out this YouTube video showing off some of Jerobeam’s work (actually shown on an audio waveform display, not oscilloscope). It really is a crazy to behold because the music ‘video’ and the music are one and the same. The fact that this is possible at all is a quite difficult to get your head around. There is an FAQ on Jerobeam’s website and it mentions which software packages he uses but not exactly how it is done.
We have mentioned generating Lissajous Figures on using a Digital-to-analog converter, although that was images only. Lissajous figures are pretty cool but encode them onto some music and it gets ten times cooler. Props to Jerobeam Fenderson for having such a cool name and putting together this ultra-cool project.
There is also a subreddit dedicated to oscilloscope music. If you want more of this type of thing, check it out.