八度
八度（英语：Octave，也称为完全八度）是音程个一种，渠个组成是由2个相同音名但来自弗同音域所组成。两音个距离为12个半音，而频率个比例是2:1，掉句话讲，较高音个频率为较低音个两倍。而迭个比例，弗论是运用平分律、纯律或是毕氏音程侪是相同个。
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