That dates back about three centuries, among those who settled in the South at that time were musicians the ancient capital Hue. Since then, the kind of ceremonial music often heard in the palace became more widely known among the populace. The artists of these musical groups began to combine gestures to their songs; performers converse. Create the theatrical art-that is now called modern folk opera. Such as in the opera "A King Paying Debts", the story demonstrates that people who are magnanimous and kind-hearted, regardless of their position, always bring luck and happiness to many others.