Since there is no longer a Lincoln Center Festival (the moral being never hire a former college president who believed locals could summer in Salzburg or other pricey European festivals just like ex-colleagues and students/alums can), Mostly Mozart successfully transitioned to a more inclusive schedule.  Choreographer/Director Yang Liping's Under Siege, an entertaining retelling of the Ancient Chinese Chu-Han Contention may seem a bit of a stretch, but at its conclusion when pieces of red paper symbolizing dead warriors and one fiercely loyal maiden fell,  its message is very clear: a world without harmony.is dangerous. Audiences filing in to the Koch Theater saw the