Six basic abilities that China ancient Confucianism required students to master: courtesy, music, shooting, command, calligraphy and number. From "Bao's Family in Zhou Li": "Cultivating the country by Tao is to teach six arts: one is five rites, the other is six music, the third is five shots, the fourth is five orders, the fifth is six books and the sixth is nine numbers." This is the "Six Arts" of "Five Classics and Six Arts". There is also a saying that the six arts are the six classics, which are called Yi, Shu, Shi, Li, Yue and Chun Qiu. (The Book of Songs)
Yi Liu
The "six meanings" in The Book of Songs refer to three poetic forms of "style, elegance and ode" and three expressive techniques of "fu, bi and xing".
Also engage in six arts