Rolf R Bakke | C64 Jeroen Tel's Stormlord music oscilloscope view @RolfRBakke | Uploaded November 2014 | Updated October 2024, 20 hours ago.
Found a player that solos the voices correctly (java SIDplay2), so all synchronization and ring modulation effects are visible. I also wrote a program to draw the wave forms instead of filming my oscilloscope! :)

On this one I had to patch the code in the SID file to get all 4 tracks, including the 4 bit sample playback.