Lin Zhong’s explanation: 1. One of the twelve laws of ancient music. 2. Refers to the sixth month of the lunar calendar. 3. Bell name.

The twelve laws of ancient music are the twelve tones of ancient music. The term of ancient Han music theory is the ancient method of tuning. That is, starting from the standard tone of Huang Zhong temperament, one octave is divided into twelve semitones that are not completely equal according to the three-point gain and loss method.

The names of the twelve rhythms of ancient music:

Huang Zhong, Da Lu, Tai Cu, Jia Zhong, Gu Xi, Zhong Lu, Ruibin, Lin Zhong, Nan Lu, Yize , Wushe, Yingzhong, Folding.

The months corresponding to the twelve rhythms of ancient music:

The first month is Dazhu, the second month is Zhongzhong, the third month is Guxi, the fourth month is Zhonglu, the fifth month is Ruibin, and the sixth month is Lin. Zhong, Yize in July, Nanlu in August, Wushe in September, Yingzhong in October, Huangzhong in November, and Dalu in December.

The six Yang laws (also called laws) include:

Huang Zhong, Tai Cu, Gu Xi, Ruibin, Yi Ze, and Ming She.

The six Yin rhythms (also known as Lu) include:

Da Lu, Jia Zhong, Zhong Lu, Lin Zhong, Nan Lu and Ying Zhong.

The ancient music tradition is divided into three major elements: "twelve tones", "five tones" and "eight tones". In fact, "eight tones" does not refer to the eight tones, but refers to various musical instruments in general. The so-called "Bayin" refers to "gold, stone, soil, leather, silk, wood, gourd and bamboo". It is a classification of various musical instruments according to the materials they are made of.

"Five tones" refers to the five musical scales. The five tones are: Gong, Shang, Jiao, Zheng (zhǐ), and Yu.