In addition, "Spring Palace" also includes eight tones of Zhou system: gold, stone, earth, leather, silk, wood, wood and bamboo. Guo Si in the Tang Dynasty (now Myanmar) paid a lot of "eight tones", which can't be classified by the "eight tones" in the Zhou Dynasty.
Change the three tones, and the new eight tones are: gold, shellfish, silk, bamboo, baa, skin, teeth and horns.