Carols refer to poems of praise and celebration. See the scene "Appreciation Banquet Table": "The voice of joy is trillions, and the title is in the form of praise." In ancient Greece, carols were poems written for important ceremonies, with colorful chorus forms, accompanied by dances and musical instruments. Laughter and laughter are in trillion units, and the sense of title is in the form of carols. -Tang Songjing's "Thank you for the official banquet on March 3" was sung by political and religious scholars, and the folk song was sung by Vaughan. -"Song Shu Xie Lingyun Biography Writing"