I've been thinking about the same, but use old cassette tapess and just print a small QR code on the back, then rip out the intestines on an old cassette player

I've been thinking about the same, but use old cassette tapess and just print a small QR code on the back, then rip out the intestines on an old cassette player and put in a raspi and camera to read the QR and play the equivalent song/album.