What makes an artist po-faced? Why does seriousness work for some and not others? UR or Drexciya can come off as somewhat stern and humourless but it doesn't detract from the music at all whereas the same qualities in say a black metal band may just come off as laughable and make the whole affair pretty embarrassing. What's the distinction? Is it that UR are serious about something concrete and substantial whereas the black metal act are essentially adopting a pose?