C1747 Taiyi xianqin

In Tang Huan's previous world, there was also the existence of a guqin.

There, the zither has seven strings. However, it was said that in ancient times, the zither also only had five strings, an inner alloy, wood, water, fire, and earth Five Elements. The zither also had five notes, and then, the Wen King added one string, and the Martial King added another string