St. Louis has had its share of defining moments in Black music — in rooms both intimate and enormous. From W.C. Handy’s appearance at the 1944 Negro Music Festival at Sportsman’s Park to Beyoncé’s Renaissance Tour at The Dome at America’s Center eight decades later, there’s a familiar pride in being able to say, “I was there when…” Another one of those moments unfolded at The Dome last night, when tens of thousands packed in for the St. Louis st…