Synopsis: In the mid-1930s, Marian Anderson was a famed vocalist who had been applauded by European royalty and welcomed at the White House. But, because of her race, she was denied the right to sing at Constitution Hall in Washington, D.C. This is the story of her resulting involvement in the civil rights movement of the time. "A voice like yours," celebrated conductor Arturo Toscanini told contralto Marian Anderson, "is heard once in a hundred years."…