Re: Why would it recommend?
As a fan of Hip Hop and Metal I disagree. In fact I completely disagree with this statement:
"People who prefer so-called hard music, which covers a wide set of genres from hard rock and punk to hip hop, aren't much interested in music outside of their niche."
Total bull. My favourite band is Motorhead but I regularly listen to everything from metal to house, classical, jazz, hip hop and folk music. I think I've seen Steve Earle perform as many times as I have Lemmy.
I'd suggest the problem AI has with recommending music is music taste is exceedingly personal and not explainable in machine terms. I couldn't explain why I like the bands I do but I definitely like them and dislike others.