I think what you've done is very cool! But I haven't had much luck with it, I think it's because of the emotions that I've anchored into the songs that I like, which is very noticeably missing in the songs that are suggested.

This would also explain why people love and cherish songs that would objectively speaking be considered bad.

The feelings that people feel when they listen to the song, the environment that surrounds us and the situations that we're in.

But it is an interesting discovery tool!