What was the name of the piece of music that Cool Son Yip played with leaves in the [Final Battle on the Top of the Forbidden City] played by Andy Liu and Ekin Zheng?

In the movie " The Final Battle on the Top of the Forbidden City " that was played by Andy Liu and Ekin Zheng, the song that Cool Son Yip played with leaves was called " Leaves." " Leaf " was a famous Chinese folk song composed by the Ming Dynasty musician Zhang Sanmi. This piece of music had a deep emotion and a unique tone, which was widely used in traditional Chinese music, movies, and television dramas. Ye Gucheng used the leaves to play this piece of music to show his unique musical talent and feelings, which was also a highlight of the film.