Yamaha PLG100-SG official demonstration disk
Retrieved: 2026-08-29

Source archive:
https://archive.org/details/plg100sgdemo

The five MIDI files match the checksums of the preserved original Yamaha
3.5-inch demonstration disk. They are distinct from the four S-YXG100 SG
songs already present in the parent folder.

The separately available instrumental edits were deliberately excluded
because they remove the SG singing tracks.
