3/1: Difference between revisions

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| Cents = 1901.95500
| Cents = 1901.95500
| Name = tritave, <br>3rd harmonic, <br>perfect twelfth
| Name = tritave, <br>3rd harmonic, <br>perfect twelfth
| Color name =  
| Color name = w12, wa 12th
| Sound = jid_3_1_pluck_adu_dr220.mp3
| Sound = jid_3_1_pluck_adu_dr220.mp3
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The '''third harmonic''' or '''tritave''' is another name of the 3rd [[partial tone]], the interval with the [[frequency ratio]] of '''3/1''', one octave above [[3/2]].
The '''tritave''' (interval [[ratio]] '''3/1''') is the [[interval]] between a fundamental tone and its '''3rd harmonic'''. It is perhaps the most [[consonance|consonant]] interval after the [[octave]]. For this reason, it is used as an [[equave]] in some [[nonoctave]] systems, such as the [[Bohlen-Pierce]] scale.


It is perhaps the most [[consonance|consonant]] [[interval]] larger than an [[octave]]. Used as an [[interval of equivalence]] in some [[nonoctave]] systems, such as [[Bohlen-Pierce]], where it may be referred to as the ''tritave''.
The tritave is one octave above [[3/2]], the perfect fifth. Therefore, in a [[5L 2s|diatonic]] context, 3/1 is also called the '''perfect twelfth'''.
 
== Etymology ==
The term ''tritave'' was coined by [[John Pierce]]<ref>https://www.huygens-fokker.org/bpsite/intervals.html</ref>. It was derived from the word ''octave'' by replacing the prefix ''octo-'' (eight, for 8 notes in an octave span of the diatonic scale) by ''tri-'' (three, for 3/1).


== See also ==
== See also ==
* [[EDT]] -- systems dividing the tritave equally, see.
* [[EDT]] (equal divisions of the tritave)
* [[Bohlen-Pierce]] -- systems with the tritave as the just fundamental harmonic
* [[No-twos 31-limit]] -- non-octave 31-limit system containing neither 2 nor primes higher than 31
* [[No-twos 31-limit]] -- non-octave 31-limit system containing neither 2 nor primes higher than 31
* [[3/2]] - the just perfect fifth as the [[octave reduced]] counterpart of the tritave
* [[Tritave complement]] -- the analogue for [[octave complement]]
* [[Tritave complement]] -- the analogue for [[octave complement]]


== References ==
<references />


[[Category:Tritave| ]] <!-- main article -->
[[Category:Harmonics]]
[[Category:Terms]]
[[Category:Terms]]
[[Category:Definition]]
[[Category:Tritave| ]] <!-- main article -->
[[Category:Just interval]]
[[Category:Partial tone]]


[[Category:Todo:expand]]
[[Category:Todo:expand]]
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