Chapter 165 Frog Song
Wang Zixun said: "In the past, when I was in Kyoto, I saw a man performing tricks in the downtown, with a wooden box beside him. There were twelve squares in the box, and there was a frog in each compartment. If you hit the frog's head with a thin stick, it will quack. If someone pays for money, the performer will beat the frog randomly, such as playing copper gongs, Gong Shangjiao Zhengyu's various tunes, one by one, heard in the ear, clearly distinguishable.