《宋书·志·卷十九》
傅玄《节赋》说： 唱黄钟歌，跳《九韶》舞，没有节就不能开歌唱，没有节就不能打拍子。 
傅玄《节赋》云： 黄钟唱哥，《九韶》兴舞。口非节不咏，手非节不拊。 
Fu Xuan's "Jie Fu" said: When singing "Huang Zhong", dancing "Nine Shao", you can't open your voice without "jie", and you can't beat the time without "jie".
<s>[INST] Kindly elucidate the central themes in this passage in English: 傅玄《节赋》云： 黄钟唱哥，《九韶》兴舞。口非节不咏，手非节不拊。  [/INST] Fu Xuan's "Jie Fu" said: When singing "Huang Zhong", dancing "Nine Shao", you can't open your voice without "jie", and you can't beat the time without "jie".</s>
Kindly elucidate the central themes in this passage in English: 傅玄《节赋》云： 黄钟唱哥，《九韶》兴舞。口非节不咏，手非节不拊。
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Fu Xuan's "Jie Fu" said: When singing "Huang Zhong", dancing "Nine Shao", you can't open your voice without "jie", and you can't beat the time without "jie".
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