《宋书·志·卷十九》
晋代之乐如《正德》、《大豫》，到了塞伐也不改换名称，衹是称为《前舞》、《后舞》，这种依据前代的做法，是不合事理的。
晋氏之乐，《正德》、《大豫》，及宋不更名，直为《前》《后》二舞，依据昔代，义舛事乖。
Jin-dynasty music like Zhengde and Dayu did not change their names even after moving to Saiwa. They were only called "front dance" and "back dance". This practice of following former generations is unreasonable.
<s>[INST] I need this in both modern chinese phrasing and English - could you help? 晋氏之乐，《正德》、《大豫》，及宋不更名，直为《前》《后》二舞，依据昔代，义舛事乖。 [/INST] Contemporary: 晋代之乐如《正德》、《大豫》，到了塞伐也不改换名称，衹是称为《前舞》、《后舞》，这种依据前代的做法，是不合事理的。 English version: Jin-dynasty music like Zhengde and Dayu did not change their names even after moving to Saiwa. They were only called "front dance" and "back dance". This practice of following former generations is unreasonable.</s>
I need this in both modern chinese phrasing and English - could you help? 晋氏之乐，《正德》、《大豫》，及宋不更名，直为《前》《后》二舞，依据昔代，义舛事乖。
user
Contemporary: 晋代之乐如《正德》、《大豫》，到了塞伐也不改换名称，衹是称为《前舞》、《后舞》，这种依据前代的做法，是不合事理的。 English version: Jin-dynasty music like Zhengde and Dayu did not change their names even after moving to Saiwa. They were only called "front dance" and "back dance". This practice of following former generations is unreasonable.
assistant