Man, that's a site I haven't thought of for ages, but I think I actually did find myself there (or somewhere similar) a couple of years ago for something very specific.

I remember like over a decade ago when iTunes was "just" a media player and later an album/track store. Really, it was there for transferring shit to your iPod, if we're being honest.

Anyway, I remember that it was one of the media players that you could hook into Last.fm and you'd use the "scrobbler" (is it still called that?) to find new tracks and artists, with a nice interface which showed the stuff you listen to most. Didn't (doesn't) it also sync with your media player and display what you're currently listening to as well?

I remember people also made custom lists to share. Not necessarily playlists, but lists of artists who fit a certain theme or genre, all that stuff.

Then I ditched music for a few years and forgot about it. I should take a look again. Might be helpful.