What is the abbreviation of "Rite, Music, Shooting, Calligraphy, Skill and Imperial" proposed by Confucius?

China ancient Confucianism required students to master six basic abilities: courtesy, music, archery, imperial command, calligraphy and numeracy. From "Zhou Li Bao Shi": "Raising the country's children with Tao is the six arts of teaching: one is five rites, the other is six music, the third is five shots, the fourth is five commands, the fifth is six books, and the sixth is nine numbers." This is the "six arts" of "five classics and six arts".