Macy's Arts Sampler, presented by ArtsWave, celebrates theater, dance, museums, and music throughout the region in more than 20 tri-state neighborhoods. March 2 features a collaborative concert at Music Hall with a  "Heroes and Villains" theme at 1 p.m. with live performances by the Cincinnati Symphony Orchestra, Cincinnati Ballet, Cincinnati Opera and the May Festival.  Young fans of action-adventure will learn how to make stage blood and enjoy a stage combat demo.  Goto the event website for a full schedule.