What is off-key?

  • (adj): Inaccurate in pitch.
    Synonyms: false, sour


Off-key is a term often used to denote musical content that is not at the expected frequency or pitch period, either with respect to some absolute reference frequency, or in a ratiometric sense (i.e. through removal of exactly one degree of freedom, such as the frequency of a keynote), or pitch intervals not well-defined in the ratio of small whole numbers.

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