It was an evening of heroics at Symphony Hall last night. Cellist Yo-Yo Ma has lived in the area most of his life, but he has long since graduated from local into universal hero. Guest conductor David Robertson won his own title as local hero last week when he stepped in for the injured James Levine and led the Boston Symphony to triumphs on tour. And the program ended with Strauss's ''A Hero's Life."
Ma received a royal welcome when he came onstage and a standing ovation after he finished Schumann's Cello Concerto, which is an indrawing piece that isn't often a crowdpleaser. But he collaborated with the orchestra to play it with such freedom, discipline, intimacy and poetry that the audience basked not in the glow of celebrity but in the warmth and tenderness of the music.