When I thought about demos, I used to imagine a shittier version of the final song: badly recorded, unedited, and with a sub-par performance.  I used to label tracks “demo” when they weren’t up to snuff.  It was never planned; f I was embarrassed to share something I made, I used “demo” as a qualifier, thereby excusing all mistakes. Nowadays I have a better grasp of what a demo is.  It’s a rough take of the  finished song, not intended as a final product, but a necessary step