In the eight-character method, the stroke called music is (horizontal painting). "Le" is one of the strokes of "Eight Methods of Yong Zi" in soft pen calligraphy. The eight methods include "point, horizontal, vertical, hook, skimming, skimming and pressing", which are also called "side, joy, anger, vibration, strategy, sweeping, pecking and licking" respectively. Music painting is horizontal painting. How to draw horizontally: put the paper down to the front, start writing, slowly write to the right, and then return to the front when you get to the position.