Who was the first teacher of Xianggelahuqin?

Spring water. In Xiang Ge's Huqin, Xiang Ge's father died, and his mother wanted him to play the beautiful Huqin, so Xiang Ge practiced, but everyone said that he played as badly as sawing wood. Finally, Brother Xiang came to the spring and learned a good tune, so the spring became his first teacher to play the Hu Qin.