I'm not so sure about that. I don't know if I count, because I did start listening to Mastodon at least a decade and a half ago, and have given cursory listens to most of their albums, but I've never really liked them until now. I appreciated Dailor's drumming in particular, and the others are talented as well, but other than the odd song here or there their music mostly left me cold and I never listened to much of any of it enough to be that familiar with it other than in the broadest strokes. But their latest hit me in a way that nothing else from them has, it kind of floored me. I'll see on repeat listens if it was a fluke, but it was a bit surreal.