one of the unique forms which made the yakou piao-se special is the "swinging se,” which enables performers to swing during their routine. the innovation was brought by a villager named tan heyi, who had previously made his living in southeast asia. when he was watching the piao-se performance while visiting his relatives in yakou village, he thought of the popular activity "swinging" in the southeast asia. tan heyi improved the piao-se forms by using the design of swinging and thanks to his creativity, the unique form "swinging se" was invented.