5度怎么数的?3~4是半度?
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A perfect fifth is an interval of seven semitones (half step
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10/06/2022 postreply
16:30:49
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between 2 notes.
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10/06/2022 postreply
16:36:31
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简单说,两个音符把开始和结束都算上,五个音符就行,比如C到G。会有例外,先不去管它~
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10/06/2022 postreply
17:14:46