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1.The composer used the contraoctave to create a unique harmony in his piece.
这位作曲家使用反四度来创作他的作品中独特的和声。
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2. In music, the contraoctave is a rare and complex interval that can add depth and complexity to a composition.
在音乐中，反四度是一个罕见且复杂的间隔，可以为作品增添深度和复杂性。
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3. The performer expertly manipulated the contraoctave to convey a sense of tension and releasethroughout the performance.
表演者巧妙地操纵了反四度，在整个表演中传达出紧张感和释放感。