DC has politics. LA has movies. And Nashville has music. That alone would make it worth a visit in our books. But these days, Music City has been singing a new tune. Indie rock idols‚ Jack White, Kings of Leon‚ play alongside country legends. Chefs are making national waves for imaginative takes on downhome fare. And a new generation of designers has created a sophisticated take on a southern aesthetic, all artisan denim and hand-tooled leather.