GRACE GERATY MAKES A BRIDGE with Marilyn Reed as Fred Cichocki sings along with Martha Mayo under Hallet’s Clock on the corner of Front and Centre streets in Bath at noon Monday, heralding 2013 with song and the ringing of the Paul Revere bell that hangs in City Hall across the street. They were joined by 50 or so other voices in the downtown tradition. Mayo led the crowd by guitar through a localized version of Auld Lang Syne. At noon, Wiebke Theodore, who was honored in October with a Community Spirit award, rang the historic bell.