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The perception of octave equivalence appears to have both biological and cultural components. | The perception of octave equivalence appears to have both biological and cultural components. | ||
Studies have shown that various non-human animals, including rhesus monkeys and rats, experience octave equivalence to a certain extent.<ref>Hoeschele M. [https://doi.org/10.3819/CCBR.2017.120002 ''Animal Pitch Perception: Melodies and Harmonies'']. Comp Cogn Behav Rev. 2017</ref> | Studies have shown that various non-human animals, including rhesus monkeys and rats, experience octave equivalence to a certain extent.<ref>Hoeschele M. [https://doi.org/10.3819/CCBR.2017.120002 ''Animal Pitch Perception: Melodies and Harmonies'']. Comp Cogn Behav Rev. 2017</ref> | ||
However, the degree of octave equivalence perception varies across cultures, particularly in those with non-Western musical traditions.<ref>Jacoby, Nori et al. [https://doi.org/10. | However, the degree of octave equivalence perception varies across cultures, particularly in those with non-Western musical traditions.<ref>Jacoby, Nori et al. [https://doi.org/10.1016/j.cub.2019.08.020 ''Universal and Non-universal Features of Musical Pitch Perception Revealed by Singing'']. Current Biology, 2019.</ref> | ||
When a different interval (such as the [[tritave]]) is used as the interval of equivalence, it is referred to as an [[equave]] or "formal octave". | When a different interval (such as the [[tritave]]) is used as the interval of equivalence, it is referred to as an [[equave]] or "formal octave". | ||
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* [[Prime interval]] | * [[Prime interval]] | ||
* [[Gallery of Just Intervals]] | * [[Gallery of Just Intervals]] | ||
* [[EDO]] | * [[EDO]] | ||
* [[Octave reduction]] | * [[Octave reduction]] | ||