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{{Infobox Interval | |||
| JI glyph = | |||
| Ratio = 1/1 | |||
| Monzo = 0 | |||
| Cents = 0 | |||
| Name = unison, <br>perfect unison, <br>prime, <br>perfect prime, <br>1st harmonic | |||
| Color name = | |||
| FJS name = | |||
| Sound = | |||
}} | |||
{{Wikipedia|Unison}} | {{Wikipedia|Unison}} | ||
The '''unison''' (interval ratio '''1/1''') is the [[interval]] between two tones that are identical in pitch. In the [[harmonic series]], 1/1 is the 1st [[harmonic]]. | |||
Measured in [[cent]]s (or any other logarithmic measure such as [[millioctave]]s, [[EDO]] steps, etc.), the unison's size is exactly 0. This is because the distance between two identical pitches is zero. As such, the unison can be considered as a degenerate interval. | |||
In [[just intonation]], 1/1 represents the base frequency from which an interval is measured. | |||
== See also == | == See also == | ||
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[[Category:Unison| ]] <!-- main article --> | [[Category:Unison| ]] <!-- main article --> | ||
[[Category: | [[Category:Harmonics]] | ||
[[Category:2-limit]] | [[Category:2-limit]] | ||
[[Category:Todo:expand]] <!-- add informations about interval region --> | [[Category:Todo:expand]] <!-- add informations about interval region --> | ||
Revision as of 04:53, 11 December 2021
| Interval information |
perfect unison,
prime,
perfect prime,
1st harmonic
harmonic,
highly composite harmonic
The unison (interval ratio 1/1) is the interval between two tones that are identical in pitch. In the harmonic series, 1/1 is the 1st harmonic.
Measured in cents (or any other logarithmic measure such as millioctaves, EDO steps, etc.), the unison's size is exactly 0. This is because the distance between two identical pitches is zero. As such, the unison can be considered as a degenerate interval.
In just intonation, 1/1 represents the base frequency from which an interval is measured.