Guqin has traditionally been favored by scholars and literati as an instrument of great subtlety and refinement. Guqin has always been viewed as the first place among the four Chinese high culture activities such as Guqin, Chess, calligraphy and painting.
There are 7 strings in of Guqin. The first 5 in pentatonic scale representing 5 elements Metal, wood, water, fire and the earth. The 6 string was added by King Wen when his son was died. So the 6 string is sorrowful. The 7 string was added by King Wu when he encourage his soldiers go to the war. So the 7 string is very strong.
The Guqin produce the most diligent and subtle tones. There are 3 category sounds produced by the Guqin. Harmonics is representing the sound from the Heaven. Open Strings is representing the sound from the earth. Stopped string is representing the Human Beings.