Which song does the swallow endorse in the new Princess Zhu Huan?

The song sung by Swallow's endorsement is "Great Harmony in Rites and Music": the trip to the Avenue is also a public welfare. Choose talents and abilities, practice beliefs and cultivate mutual understanding. An old friend is not only a relative, but also an only son. Let the old have an end, be strong and useful, and be young and have strengths. Those who are lonely and sick are all supportive. Men get points and women get rewards. If the goods are abandoned on the ground, there is no need to hide them on yourself. You don't have to do it for yourself. It is to seek harmony without prosperity, and thieves do not do it. Therefore, the outside door was not closed. It means Datong.

"Princess Zhu Huan" Swallows fly in episode 2 1, and swallows accidentally burn the "Complete Book of Ritual Movement" that is about to be copied. The queen received the children's hypothesis that Shu Fangzhai had been partying every night and invited the emperor to Shu Fangzhai. The emperor was very satisfied with Swallow's homework, praised Wei Zi, and accepted the suggestion, so that all the people in the palace could learn to sing "Great Gift and Good Luck".