When entertaining the princes with a feast or a meal ceremony, the musician was responsible for arranging the display and order of the musical instruments, and the musician ordered the bells and drums to be played, and ordered the blind musician to be supported by sight, as was the ritual of the sacrifice. During the swallow salute, the musicians lead the archers to dance with bows and arrows. When the musicians enter and exit, the musician will order the bells and drums to be played. After the conquest, when the battle exploits to the ancestral temple, the musician will teach the blind musician to sing the triumphant song in advance, and the musician will serve as the lead singer at that time. For all the funerals of the royal family, when the instruments accompanying the funeral are arranged, the musician will lead the musicians to go there to furnish them. When the burial instruments are filled in the tomb and weep, the musician also leads the musicians to weep. The musician is in charge of all the affairs and commandments of the musicians, and hears their requests and disputes.

Daxu, who was in charge of the roster of scholars, came to wait for the time when something happened to summon them, and the bachelors were people who were studying in schools. The bachelors entered in the spring, and Daxu taught them dance, so that their movements were neat and in tune with the rhythm of the music. In the fall, their academic results are announced, and their singing is neat and rhythmic to the music. Daxu used the music and dance of the six generations to match, and straightened the position of the dancers, arranging the order of the dancers according to their age. Daxu is responsible for the examination of musicians and the inspection of musical instruments. Whenever the sacrifice requires music, Daxu will beat the drum to summon the scholars. At the same time, Daxu was responsible for arranging the teaching of dance and music in the school palace in turn.

Xiao Xu is responsible for assisting Da Xu in issuing an order to recruit bachelors, and then assessing the number of people, and if he is late, he will be punished for drinking. Xiao Xu was in charge of patrolling the procession of the dance, thus whipping and punishing those who were slack. Xiao Xu is responsible for correcting the position of the hanging instrument. The king's musical instruments were hung on four sides, the princes on three sides, the princes on two sides, and the scholars on one side. Xiao Xu is responsible for discerning whether the sound of the hanging instrument is in accordance with the rhythm. When hanging the bell chime, only 16 bells or 16 chimes are hung and they are called blocks, and all the bells and chimes are hung and called chaos.

The master is in charge of dealing with the six laws and the six samenesses, so that the yin and yang sounds are compatible. Yang sound refers to: Huang Zhong, Da Kou, Gu Xi, Rui Bin, Yi Ze, and Wu Shot; Yin sound refers to: Da Lu, Ying Zhong, Nan Lu, Han Zhong, Xiao Lu, Jia Zhong these six Tong. The yang sound and the yin sound are matched with the five sounds of gong, shang, jiao, zheng and feather and gold, stone, earth, leather, silk, wood, skuang, and bamboo.

The master is responsible for teaching the blind musicians the expression of six kinds of poetry: called wind, called fu, called bi, called xing, called ya, and called song. Those who study poetry should take virtue as the foundation and use the six rules to determine the tone of singing. During the festival, the master would lead the blind musicians to sing and strike the handle of the object as an order to start singing. After singing, when the wind and other instruments are played, the master strikes the snare drum as a command to begin. This was also done when a great feast was held to entertain the princes who came to the court.

During the Grand Archery Salute, the Maestro leads the blind musicians to sing as a prelude to archery. During the Great Expedition, the musician held a brass hose to discern the cries of the generals, so as to tell the king that he was lucky. In the event of a great funeral, the maestro will lead the blind musician to set up the funeral instruments, and when the coffin is loaded onto the locomotive, the master will be responsible for the funeral of the deceased. All blind musicians in the kingdom must obey the politics and education of the masters.

The junior teacher is responsible for teaching the playing of drums, 鼗 (táo), 枧, enemy, xūn, flute, pipe, qin and singing. When the great sacrifice is held, when the blind musician is singing in the hall, the young master strikes the handle of the object; After singing, when the hall is playing the pipes and other musical instruments, the junior teacher will beat the drum; When the offerings are removed, the teacher will command singing. This was also done when a great feast was held to entertain the princes who came to the court. When there is a big funeral, the little master participates in the display of musical instruments for the funeral. When music is played on a small scale during small festivals, the teacher will beat the small drum as a call to play instruments such as the pipe pipe. The little master is in charge of the rhythm of the six generations of dance music sounds, and the harmony between them.

(8) 瞽 (gǔ) Meng/Sigan

Blind, responsible for playing musical instruments such as mole, zhu, enemy, xun, flute, pipe, string, etc., and singing. Some poems that need to be memorized, as well as the imperial lineage and the family book written by Xiao Shi, etc., are in charge of playing the qin. At the same time, Meng was in charge of the singing of the "Nine Virtues" and the Six Poems, and came to listen to the master's command.

Sight, responsible for beating the rattle, striking the song chime and sheng chime when playing music, and hanging musical instruments for the master. When playing music, he is responsible for supporting the blind musicians. When there is a big funeral, the inspection is responsible for the display of the musical instruments that accompany the funeral. When the Grand Brigade Festival is held, it is also in charge of displaying musical instruments. During the guest shooting ceremony, the bell and drum are ordered to be played by striking the small drum of the musical music. The drums of the night patrol and the bells and drums of the army's triumphant debut are also struck by the sight.

Diantong is responsible for the harmony of the six laws and the six samenesses, to distinguish the sounds of heaven and earth, the four directions, yin and yang, and to adjust the sounds of various musical instruments. When the bell makes a sound: the upper part of the bell body is too large, and the sound emitted will hover in the bell and be difficult to spread; If the bell is too straight up and down, the sound will be slow and slow; If the lower part of the bell is too large, the sound will be presumptuous and not easy to stay; If one side of the bell is larger, the sound emitted is easy to be discrete and not restrained; If one side of the bell is narrow, the sound will be restrained and not outward; If the bell is too large, the sound will be too grand; If the bell is too small, the sound will be too small; If the body of the bell is too round, the sound will be too whirling; If the center of the bell is too small, the sound will be too urgent; If the center of the bell is too wide, the sound will be depressed and difficult to produce. The body of the bell is too thin, and the sound it makes is like a shock falling out; If the bell is too thick, it will be difficult to percussion and make a sound.