In the corridors of concert halls and at the intermission bars of opera houses, rumors have long swirled around the identity of the mysterious M. C_, who strikes terror into the hearts of arts consultants and parking police from his perch at The Standing Room. Is he the cunningly concealed alter ego of Valentin Silvestrov? The evil twin of Emanuel Ax? Today, on the occasion of his third bloggiversary, he reveals himself to be: Sid. I can't say I'm surprised; I knew something was up with those posts entitled "Just How Insanely Great Is the Kronos Quartet's Artistic Planning These Days? OMG!" and "Let's Count the Ways the Arditti Suck." But seriously, congrats!