Meanwhile, it doesn't matter how much early music I listen to, it almost never recommends me other early music. If I listen to one early music artist enough, it might recommend other videos by the same recording artist. But I can listen to 10 different versions of, say, Belle Qui Tient Ma Vie, and it will *never* recommend me another one.

This is actually a reasonably common occurrence: if I'm going to link to a recording of an early music piece in something I'm writing, I will go and listen to absolutely every version I can find on YouTube till I find the one I find optimal or run out of spoons. So when I linked to "A Virgen mui groriosa" (Cantiga de Santa Maria number 42), I listened to *every single one* I could find on YouTube. And at no point did the YouTube recommendation algorithm cotton on to the fact that I was actually interested in that.

It did throw up a couple other Cantigas, in a fitful effort, but when I didn't bite, it stopped.