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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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The opposite of off-key is on-key or in-key, which suggests that there is a well defined keynote, or reference pitch. This does not necessarily have to be an absolute pitch but rather one that is relative for at least the duration of a song. A
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The term may also refer to a person or situation being out of step with what is considered normal or appropriate. A single note deliberately played or sung off-key can be called an "off-note". It is sometimes used the same way as a
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is usually in a certain key, which is usually the note that the song ends on, and is the base frequency around which it resolves to at the end.
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center. Being on-key presumes that there is a key center frequency around which some portion of notes have well defined intervals to.
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141:The New Grove Dictionary of Music and Musicians
75:In jazz and blues music, certain notes called "
26:is musical content that is not at the expected
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59:The base-frequency is usually called the
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71:Deliberate use off-key content
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85:Five Green and Speckled Frogs
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138:, eds. (2001). "Off-note".
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144:(2nd ed.). London:
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81:And the Cat Came Back
47:Explanation of on-key
146:Macmillan Publishers
16:For other uses, see
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77:blue notes
107:Blue note
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41:blue note
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102:Tonality
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61:harmonic
24:Off-key
18:Off Key
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97:Melody
118:Notes
32:pitch
150:ISBN
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