由于旋宫转调的需要产生了在八度间应设置多少律的问题,对于不同的律制(五度相生律与纯律)取得较一致的结果是在八度间设置五十三律。这是理论分析的结果,在实用上很难做到,最方便地还是在八度间设置十二律,即所谓十二平均律的产生。但是,作为沟通两种律制的十二平均律是不太理想的。因为,它对于五度相生律旋宫转调时诸 Since the need for rotation of the spinosad produces the question of how many rhythms should be set at the octave, a more consistent result for different rhythms (five degrees of relatives and pure laws) is to set fifty-three in the octave. This is the result of theoretical analysis, which is hard to be practically done. It is most convenient to set up twelve laws in the octave, that is, the so-called twelve-mean law. However, the twelfth average law of communication between the two systems of law is less than ideal. Because it is for the fifth degree of rotation when the rotation law of the palace