What is the allusion of "lingering sound, three days without stopping"?

Allusion: Liezi Tang Wen by Zheng Yutong in the Warring States Period: "I went to Yong Men, singing and pretending to eat, but I went there, and I stayed with my own people for three days."

① Original text

Lieyukou Liezi Tang Wen in the Warring States Period;

Yesterday, when Han and E were in Eastern Qi, they were short of food, and Yan (Yu) sang fake food, but when she left, the reverberation lingered for about three days.

If you go against the journey, you will be humiliated by those who go against it. Han E wailed for ages, and cried for three days without eating. Catch up with it Wuye, go back to Long song. For a long time, all ages danced with joy, but they couldn't control themselves and forgot their sadness. "

② Translation

Legend has it that during the Warring States Period, a woman named Han E came to Qi. Because of hunger all the way, she has been short of food for several days, and she is singing and begging at the southwest gate of Linzi, Qi State. Her beautiful and euphemistic singing deeply touched the heartstrings of the audience and left a deep impression on people. Three days later, people can still hear her singing in the beams. People say that Han E's song "echoes around the beam for three days".

Han E lives in a hotel. Because of poverty, Han E was insulted by the innkeeper. Han E was heartbroken and left. The voice was so sad that everyone who heard her sing felt as if she were immersed in sadness. For a time, "all ages are sad, crying, and don't eat for three days."

The innkeeper had to invite her back to sing a happy song. Han E "restored Long song". When everyone heard that he "danced with joy and could control himself", the atmosphere suddenly became cheerful, and he forgot all his previous sadness. His singing is touching, even here.