Output is a club in Brooklyn, open one year, and the hub of Williamsburg's increasingly robust dance-music presence. Not that anyone was expecting too many surprises - a lot of hard, hiccuping beats and jackhammer bass, trap and dubstep and Dutch house, the lingua franca of mainstream nightlife the last few years - in short, what people mean by 'EDM.' for Skrillex's appearance, so I felt ready for anything. It had been snowing all day and raining all evening when the doors opened at Output on Friday night right after 10 p.m. Skrillex on stage at HARD Day Of The Dead on November 2, 2013.