I still use my old quadrphonic 8-track for my speaker amp, though the 8-track tapes themselves are all worn out.

I keep “Star Wars and Other Galactic Funk” by Meco loaded in the player, but I haven’t tried playing it in years out of fear.

It was neat though because the 4 channels were different layered tracks, so you could custom mix the music as it played using the quadraphics.