Dubstep is officially one of those genres that started out as one thing, ended up another, and now nobody can tell if music (as a whole) is even good. Maybe it’s great? But it’s probably terrible.

Run into a dance crowd, yell "Skrillex" and shield yourself from projectile vomiting, shrieking teens and arms-flailing party bro howls. Follow it with the question, "What is dubstep?" and throw on a ...