The harp only pleases oneself, not others. Zhuo Sugong paused and added, unless there is someone you want to please. The lyre was first cut by Shennong, who cut tung trees to make the lyre, and used ropes to make the strings. Among them, the second string was added by King Wu of Yi Kao and Wu, and the seventh string was cool and cool. The pines were cold and the stone was cold. Experts played it and chanted it in the sky and the earth. With the evolution of history, the lyre was gradually ignored and forgotten by the world. In later generations, most people did not even know or understand the lyre, let alone understand the history between the lyre and Taoism, Xuan, and God. It was once famous all over the world as a musical instrument of gods and a tool for kings to control power. However, during its glorious centuries, it was like a pearl in the ocean, gradually sinking into the historical trend. But fortunately, the lyre has not yet reached a desperate situation. EMI's head, Bian Heyi, and his descendants will pass the instrument on, and it will show its prominence again in the new unified dynasty. In the experience of the lyre master Zhuo Sugong, the dust of history is gradually revealed to the world, and the seal of the lyre is revealed... It involves the power struggle, love, blood relationship, and conspiracy in the world... This story was recorded by an unknown person. It is said that the writer is immortal. After writing the story, he closed his pen and retired. But the story has persisted.