Comment by PaulHoule

There are many different "algorithms". YouTube has an algorithm that gets a very high hit rate because it plays music you've already proven that you like. That's good and bad.

I listen to the "Deep Cuts" recommender on Plexamp a lot, it uncovers a lot of good music that I haven't heard before out of my large collection, I've got no idea how it works.

One funny thing about it is that I do not play it through the speakers at home because my family tends to find anything selected by a recommender really provocative, not necessarily in a bad way, but the last thing I want to do is answer questions about music I didn't select myself. I mean I can play through a Charlie XCX or Tyler the Creator or rock-opera phase Kinks album and nobody says anything about it but if they do I have a good story to tell about it, but it's too annoying to get hassled about some UB40 track I never heard before that's between a BTO and Olivia Newton-John track.

(Generally I find that recommender selected content is "provocative", like if anyone is looking over my shoulder, they are very unlikely to see what I am actually interested in and working on but instead they want to ask me questions about things on my screen that I'm either just a little warm or totally cold to)