Move over, Lang Lang, there's a new sensation in the world of classical-music-as-spectacle, and she springs onto the concert stage in a backless, silver-sequinned mini-dress and five-inch stilettos. I know: my feminist roots scream, "Judge women by their works not their appearance!" But it's very hard not to embrace Yuja Wang for her engaging persona and killer fashion sense as well as her considerable talent. T…
