Wu Guang
Laozi transmitted it to Queen Mother of the West, she to the Perfected Person of the South Polar Star 南極真人 [controller of human longevity], he to Guangchengzi, he to the wind god Feng Bo, and he to Xiaofu 嘯夫 Father of Whistling. Father of Whistling taught it to [7-inch-tall] Wu Guang 務光, he to Emperor Yao, and Yao to Emperor Shun, who invented the zither. Shun transmitted whistling to Yu the Great, after whom the art declined until it was revived by the Jin dynasty (266–420) Daoist transcendent Sun Gong 孫公 of Mt. Taihang who obtained the technique, achieved the Way, and disappeared without teaching it to anyone. Ruan Ji had a smattering knowledge of the art but after him it was lost and no longer heard.