Last Updated
：2025/11/23
perfect fifth
Noun
Japanese Meaning
音楽理論における音程の一種で、「完全五度」と呼ばれる。具体的には、調和系列の第2倍音と第3倍音の間隔に相当し、等音律では七半音にあたる。ダイアトニック・スケール上で五番目の音までを含み、拡張的には減六度と同音異義となる。
（ plural ）
Quizzes for review
(music) an interval equal to that of between the second and third harmonics of the harmonic series; in equal temperament, an interval of seven semitones spanning five degrees of the diatonic scale. It is enharmonically equivalent to a diminished sixth.
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perfect fifth
When tuning the string quartet, she adjusted the cello by ear until the perfect fifth matched the violin's note.
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When tuning the string quartet, she adjusted the cello by ear until the perfect fifth matched the violin's note.
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