perfect fourth

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English

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Etymology

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The word perfect refers to the fact that so-called perfect intervals are neither major nor minor.

Noun

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perfect fourth (plural perfect fourths)

  1. A musical interval spanning four degrees of the diatonic scale. In the Western twelve-semitone system, it consists of five standard semitones.
    The perfect fourth has a pitch ratio close to 4:3.

Synonyms

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