“What started as a technique class – focused on turnout of the legs, placement of the arms, straightness of the back – became a larger kind of learning experience, when Ms. Copeland, 35, was joined for an after-class discussion by a trailblazing African-American dancer of another generation, the 86-year-old Carmen de Lavallade. The two spoke about breaking down barriers for black ballet dancers and honoring those who had done so before them.”