Koto score - Kinfu

...In China after the Xinhai Revolution, the use of "simplified music" (numerical notation), which replaces pitch with Arabic numerals and adds rhythmic symbols, has become quite common, and Western musical notation is also used with supplementary symbols added as necessary. (2) Musical notation The oldest musical notation for instruments is for the qin (seven-stringed zither), and the first time that musical notation can be found in musical documents is in the four volumes of the "Qin Pu" compiled by Dai (Book of Sui, Volume 32, Journal 27, Classics 1). This is thought to have been compiled by Dai Kui, who appears in the "Book of Jin," and is estimated to date to the end of the 4th century, but the actual notation is unknown.

*Some of the terminology that refers to "Kotofu" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…なお辛亥革命以後の中国では，音の高さをアラビア数字に置き換えリズム記号を付した〈簡譜〉(数字記譜法)がかなり広く行われており，西洋の五線記譜法も必要に応じて補助的記号をつけるなどして用いられている。(2)奏法譜　楽器の奏法譜は琴（きん）(七弦琴)の譜が最も古く，初めて楽書類の中に〈琴譜〉がみられるのは，戴氏撰《琴譜》全4巻(《隋書》巻三十二，志第二十七，経籍一)においてである。これは《晋書》に出てくる戴逵（たいき）の撰んだものと考えられ，4世紀末ころのものと推測されるが，記譜の実際はわからない。…

※「琴譜」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報