How did the pentatonic scale (Gong, Shang, Jiao, Zheng and Yu) in ancient China rank from low to high?

The five-tone scales (Gong, Shang, Jiao, Zheng and Yu) in ancient China are arranged as follows:

1. Gong: It has the lowest tone, the lowest range, the longest and most stable sound, and is often used as the end of music.

2. Quotient (shāng): The tone is higher than the palace and the range is lower. It is the second sound in the pentatonic scale and is often used as the beginning of music.

3. Angle (Ji O): It is the third sound in the pentatonic scale with high pitch, moderate range and moderate sound length.

4. Sign (zhǐ): It is the fourth tone with higher pitch, higher range and shorter sound length among the five tones.

5. Feather (yǔ): It has the highest pitch, the highest range and the shortest sound length, and is the last sound in the pentatonic scale.

These five scales are arranged according to a fixed interval relationship, forming a complete scale. This pentatonic scale is widely used in ancient music in China and has become one of the important features of China music.