Pavement fans know Mark Ibold as the seminal indie band’s bassist, but regulars of the Great Jones Cafe have known him as their affable bartender for the past seven years. We caught Mark after a stint touring Europe and the West Coast with another legendary outfit, Sonic Youth, and after we unloaded the obligatory “Will Pavement reunite?” question — “Our booking agent seems to think we’re going to be doing a reunion tour sometime in the next couple of years,” he says. “But it’s definitely not official” — we asked him about working at the Jones, where he’s been a customer for two decades.