This is a live streaming test on MakerTube with Oscilloscope Music by Jerobeam Fenderson on an old Grundig Oszilloskop GO 20Z. The left audio channel is on the input of the x-axis on the oscilloscope, right channel is on the input of the y-axis.

https://oscilloscopemusic.com https://jerobeamfenderson.bandcamp.com/album/oscilloscope-music