The octave in music refers to the interval between one note and another with double its frequency, hence the term originates from the eight-note scale commonly used in European music.

音乐中的“八度”指的是一个音符与其频率加倍的另一音符之间的音程，因此该术语源于欧洲音乐常用的八音音阶。

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For example, go back to the Hakka eight tones.

例如, 回溯到客家八音.

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It is the oldest concerto in China, with the harmonious tune.

它堪称我国最古老的“协奏曲”了, 八音和谐.

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The interval and the consonance of an octave.

八音度的音程和和音.

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After singing opera and Mistress, Back to Basics phases, to the actress and mature.

粤曲经过唱八音、师娘 、 歌姬等阶段, 至女伶而成熟.

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Xinzhou octave and five sets of eight, all from life, the feelings of infiltration.

忻州八音和五台八大套, 都源于生活, 渗透于感情.

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Monks chanting, drum playing octave to the river spirits of the dead died.

僧人诵经 、 八音吹奏鼓乐,以超度死于河中的亡灵.

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