What are the rhythms of ancient music?

1. Rhythm is a device used to coordinate yin and yang and calibrate melody. In modern music, it is called a tuning tube. "Rhythm regulating yang" refers to the use of rhythm to coordinate yin and yang and make the time sequence normal.

2. There are five tones in China ancient music, and the Gongshang corner is a positive tone, which is five full tones, plus two semitones, one is 4, one is 7, and the other is * * * seven tones. These seven sounds are an octave natural scale, and there is no pitch, that is, there is no pitch. What do we do? We should use temperament to set the tone for it. Temperament is called Fa Guan and Lu Guan.

3. The Theory of Spirit in the era of the Yellow Emperor used twelve bamboo tubes, the longest being nine inches and the shortest being four inches and six minutes, because nine is the pole number of Yang. Then arrange the bamboo tubes in order of length, with the upper nozzle on one side flush and the lower nozzle of different lengths, like cutting green onions, leaving oblique stubble and inserting it into the soil.

4. The bamboo tube in "On Spirit" is empty, and it is filled with ash burned by reed film. This kind of fly ash is the lightest, which is called leisure time. Bury these pipes in the shady mountain in the northwest, cover them with a cloth curtain and build a room outside. There is absolutely no wind blowing, so use them to wait for the earth's atmosphere, because the yin and yang in the underground are changing at any time.

In the winter of solstice, the sun was born. Sun be the spirit throughout his life, the ash in the first nine-inch long pipe called Huang Zhong flew out on its own and made a "buzzing" sound at the same time. This kind of sound is called the yellow bell, which is a child at this time and the solar term is the winter solstice. Use this sound to set the key, which is equivalent to the c key of modern music; At the same time, a time can be set to adjust the change of phenology, so it is called "rhythm yang regulation"

6. Twelve tubes are divided into six yin and six yang groups. Six odd numbers belong to yang, which is called six laws; Six even numbers belong to yin, which is called six laws. The first of the six laws is Huang Zhong, and the first of the six laws is Da Lv, so there are the sayings of Huang Zhong and Da Lv in the music.

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