Hehe, I don't know what the four famous songs you mentioned here are, but the data shows that they are the top ten. The top ten ancient famous songs are Mountain Flowing Water, Guangling San, Wild Goose in Pingsha, Three Lane of Plum Blossoms, House of Flying Daggers, Flute and Drum in Sunset, Questions and Answers of Fisherman, Eighteen Beats of Noisy, Autumn Moon in Han Palace and Chun Xue.
I wonder where you saw the four famous songs. I hope you can take another look and make sure. Because these ten works are inseparable, unless they are works of that period. Because there is a story behind every work.