Did China have music scores in ancient times? What's it like? If not, how do they teach each other?

There were music scores in ancient times, one of which was called Gongchi notation.

For example, when the ancients played the piano, they had to play music first. If you talk nonsense, it's called "no music"

In China, traditional folk notation is often written with the words Gong and Chi, which are widely used in folk songs, folk art, operas and instrumental music.

In modern times, the common Gong-Chi notation generally uses the words He, si, Yi, Shang, Chi, Gong, Fan, Liu, Wu and B as the basic symbols to express the pitch (which is also a roll call), which can be equivalent to sol, la, si, do, re, mi, fa (or rising Fa), sol, la and SI. If the homonym is eight octaves higher, you can pick up the last stroke of the character, or add a radical, as in the high octave writing of the above word. On the other hand, if the homophone name is eight degrees lower, the last stroke of the spectrum word can be left downward, such as Fan and Gong. If it is two octaves higher, the last stroke will be double-picked or added, as above. If it is two octaves lower, the last stroke is double-headed, as above.

the rhythm symbol of the I-scale spectrum is called the board eye. Generally, the board stands for strong beat, and the eyes stand for weak beat. * * * has the forms of scattered board, flowing board, one board with one eye, one board with three eyes, and one board with three eyes with a complimentary board. Scattered board is free rhythm; The water board is written with a board for each beat, which is generally a quarter of the rhythm. There are two forms: the solid board refers to the board laid at the same time as the music, and the waist board is the board laid before or after the music is issued; A board with one eye is a 2/4 beat composed of a board and an eye; A board with three eyes is a 4/4 beat composed of a board and three eyes; The one-board-three-eye-adding board is only found in Nanqu of Kunqu Opera, which is roughly equivalent to 4/2 beats.

Gongchi notation has a long history, and it was used in the Tang Dynasty. For example, it was discovered in the Thousand Buddha Cave in Dunhuang that the Ming Dynasty wrote the Tang Dynasty Daqu (933). In the Song Dynasty, it was the spectrum of popular characters, such as the spectrum recorded in Zhang Yan's Etymology, the side spectrum of Jiang Kui's Songs of Taoist Baishi, and the tube chromatography in Chen Yuanliang's Records of Shi Lin Guang. It has been developed to the Gongchi spectrum that prevailed in the Ming and Qing Dynasties.

From this notation to the Qing Dynasty and the Jiaqing period, there appeared a total score of orchestral ensemble written in Gongchi notation-Chord Preparation, that is, Thirteen Sets of Chords.