What was the ritual music (battle song) when the Qin Dynasty went to war?

Qin Feng Without Clothes

Does it mean without clothes? Robe with the son. Wang Yu started his division, repaired my spear, and shared his hatred with his son.

no clothes? With the son. Wang Yu started the division, repaired my spear and halberd, and worked with his son.

no clothes? With the son. Wang Yu started his division, trained my soldiers, and walked with his son.

This poem consists of three paragraphs, which show the high morale of Qin Jun soldiers before going out to war: they call on each other, encourage each other, risk their lives, and share the same enemy. It's an impassioned military song! Qin Feng Without Clothes is the most famous patriotic poem in The Book of Songs. It is a war song of the people in Qin (now central Shaanxi and southeastern Gansu) who fought against Xirong invaders. In this war against aggression, the people of the State of Qin showed their brave and fearless martial spirit, and also created this generous battle song full of patriotic passion.