I’m not positive, but I may have run into this guy on Spotify. Several months ago I was listening to Spotify and was recommended two songs in a row that sounded very similar, but had very subtle differences in them. For instance, the baseline in one was slightly altered, and the main synthesisor sounded slightly different. But the overall rhythm and melody were more-or-less the same.
I was able to find 100s of versions of what were essentially the same song with a different title, artist and album art. I made a playlist of them all, but it looks like Spotify removed all but two of the songs I had added: