/kloc-In the middle of the 8th century, Rousseau, a famous French thinker, put forward his digital counting system. However, due to the opposition of music professionals, digital notation has not been realized.
/kloc-In the 20th century, after the improvement and popularization of mathematics teachers Garland, Paris and Dr. Xie Wei, digital notation was widely used by the masses. This notation system is called "Garland-Paris-Chevy notation system" in France.