(Erika Goldring/TAS24/Getty Images for TAS Rights Mana | Getty Images North America)This essay first appeared in the NPR Music newsletter. Did you hear the noise enveloping the pop music world last week? What I think is most different about music-driven popular culture now — though not wholly unprecedented — is the gamification of everything. No one has grasped better than Swift how music in the attention-deficit century requires a multi-media frame to keep people engaged. Despite the fact that fans have always made music loving into a game, and that artists have historically engaged with that process in creative ways, the dominance of gamification within music is relatively new.