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<h2>IMPORTED REVISION FROM WIKISPACES</h2>
{{interwiki
This is an imported revision from Wikispaces. The revision metadata is included below for reference:<br>
| de = 16-EDO
: This revision was by author [[User:guest|guest]] and made on <tt>2010-02-20 01:41:55 UTC</tt>.<br>
| en = 16edo
: The original revision id was <tt>121704487</tt>.<br>
| es = 16 EDO
: The revision comment was: <tt></tt><br>
| ja = 16平均律
The revision contents are below, presented both in the original Wikispaces Wikitext format, and in HTML exactly as Wikispaces rendered it.<br>
}}
<h4>Original Wikitext content:</h4>
{{Infobox ET}}
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;white-space: pre-wrap ! important" class="old-revision-html">=16 tone equal temperament=
{{ED intro}}


==Theory==
16edo's step size is sometimes called an '''eka''', a term proposed by [[Luca Attanasio]], from Sanskrit [[wikt:%E0%A4%8F%E0%A4%95#Sanskrit|एक]] (''éka'', "one", "unit"),<ref>[http://www.armodue.com/risorse.htm Armodue: le risorse di un nuovo sistema musicale]</ref> when used as an [[interval size unit]], especially in the context of [[Armodue]] theory.
16-tone is a tuning which has been less popular but can be very rewarding. 16-tone equal temperament is the division of the octave into sixteen narrow chromatic semitones. The 25cent difference in the steps can sound to a trained ear like phantom Pythagorean commas / enharmonic genera. It can be treated as 4 interwoven diminished seven arpeggios, or as 2 interwoven 8-edo scales (narrow 11-limit whole tones which when stacked produce minor third intervals). 16-tone has the same stacked minor thirds diminished seventh scale/chord available in 12, and It is often cited that the most consonant chords involve the tritone. (However with the correct timbre, one can suggest consonance with any tuning.)


One neat xenharmonic aspect of 16-tone is how the 11-limit whole tone scale using the neutral second, interlocks with the diminished scale, similar to how the augmented scale and whole tone relationship in 12-tone (the whole tone divides the major third in 12, in 16-it's the minor third).
== Theory ==
The [[3/2|perfect fifth]] of 16edo is 27 cents flat of 3/2, flatter than that of [[7edo]] so that it generates an [[2L 5s|antidiatonic]] instead of [[5L 2s|diatonic]] scale, but sharper than [[9edo]]'s fifth, to which it similarly retains the characteristic of being a fifth while being distinctly flat of 3/2. If the fifth is interpreted as 3/2, this befits a tuning of [[mavila]], the [[5-limit]] [[regular temperament|temperament]] that [[tempering out|tempers out]] [[135/128]], such that a stack of four fifths gives a [[6/5]] minor third instead of the familiar [[5/4]] major third as in [[meantone]]. A more accurate restriction is [[mabilic]], which discards the inaccurate mapping of 3 while keeping the fifth as a generator.  


In 16-tone, because of the 25 cent difference in the steps from 100 in 12-tone, a western "twelve tone ear" hears dissonance with more complexity and less familiarity than even 24-tone, yet within a more manageable number of tones. Hence, why 16-tone is a truly Xenharmonic system.
This leads to some confusion in regards to interval names, as what would be major in diatonic now sounds minor; there are several ways to handle this (see in [[#Intervals]]).  


0. 1/1 C
In general, 16edo tends to better approximate the differences between odd [[harmonic]]s than odd harmonics themselves, though it has a [[5/1|5th harmonic]] which is only 11 cents flat, and a [[7/1|7th harmonic]] which is only 6 cents sharp. As such, 16edo can be seen as an approach to tuning that takes advantage of the idea that simpler ratios can be functionally approximated with greater error (i.e. a 3/2 that's 25 cents flat is still recognizable, but a 5/4 that's 25 cents flat loses much of its identity and a 7/4 that's 25 cents flat is completely unrecognizable). In essence, 16edo's 3, 5, and 7 are backwards from 12edo's, with 7 being nearly perfect, 5 being decent, and 3 being distinctly out-of-tune.  
1. 75.000 cents C# Dbb
2. 150.000 cents Cx Db
3. 225.000 cents D
4. 300.000 cents D# Ebb
5. 375.000 cents Dx Eb
6. 450.000 cents E Fb
7. 525.000 cents F
8. 600.000 cents F# Gbb
9. 675.000 cents Fx Gb
10. 750.000 cents G Abb
11. 825.000 cents G# Ab
12. 900.000 cents A
13. 975.000 cents A# Bbb
14. 1050.000 cents Ax Bb
15. 1125.000 cents B Cb
16. 2/1 C


In terms of higher primes, both 11 and 13 are approximated very flat, with the [[11/8]] not distinguished from [[4/3]], and [[13/8]] not distinguished from [[8/5]]. 16edo represents the no-9 no-15 [[25-odd-limit]] [[consistent]]ly, however.


1 octave into 8 equal parts = 2 2 2 2 2 2 2 2 = 3/4 tone Neutral Second Progression
Four steps of 16edo gives the 300{{c}} minor third interval shared by [[12edo]] (and other multiples of [[4edo]]), which approximates [[6/5]], and thus tempers out 648/625, the [[diminished comma]]. This means that the familiar [[diminished seventh chord]] may be built on any scale step with four unique tetrads up to [[octave equivalence]]. The minor third is of course not distinguished from the septimal subminor third, [[7/6]], so [[36/35]] and moreover [[50/49]] are tempered out, making 16edo a possible tuning for [[diminished (temperament)|septimal diminished]]. Another possible interpretation for this interval is the 19th harmonic, [[19/16]].
2 octaves into 8 equal parts = 4 4 4 4 4 4 4 4 = Classic Minor Third Progression
3 octaves into 8 equal parts = 6 6 6 6 6 6 6 6 = 9/4tone or Septimal semi-dim Fourth Progression
4 octaves into 8 equal parts = 8 8 8 8 8 8 8 8 = Tritone Progression
5 octaves into 8 equal parts = 10 10 10 10 10 10 10 10 = Septimal semi-aug Fifth Progression
6 octaves into 8 equal parts = 12 12 12 12 12 12 12 12 = Classic Sixth Progression
7 octaves into 8 equal parts = 14 14 14 14 14 14 14 14 = 21/4 tone or Neutral Seventh Progression
8 octaves into 8 equal parts = 16 16 16 16 16 16 16 16 = Octave Progression
9 octaves into 8 equal parts = 18 18 18 18 18 18 18 18 = Ninth Progression


16edo shares several similarities with 15edo. They both share mappings of [[8/7]], [[5/4]], and [[3/2]] in terms of edosteps – in fact, they are both [[valentine]] tunings, and thus [[slendric]] tunings. 16edo and 15edo also both have three types of seconds and two types of thirds (not including arto/tendo thirds). However, 15edo's fifth is sharp while 16's is flat.


16edo works as a tuning for [[extraclassical tonality]], due to its ultramajor third of 450 cents.


=== Odd harmonics ===
{{Harmonics in equal|16}}


=== Octave stretch ===
Having a flat tendency, 16et is best tuned with [[stretched octave]]s, which improve the accuracy of wide-voiced JI chords and [[rooted]] harmonics especially on inharmonic timbres such as bells and gamelans, with [[25edt]], [[41ed6]], and [[57ed12]] being good options.


[[http://www.armodue.com/ricerche.htm|Armodue]]: Italian pages of theory for 16-tone (esadekaphonic) system, including compositions - translation, anyone?
=== Subsets and supersets ===
Since 16 factors into primes as 2<sup>4</sup>, 16edo has subset edos {{EDOs| 2, 4, and 8 }}.


[[image:http://ronsword.com/images/ESG_sm.jpg width="120" height="161"]]
=== Composition theory ===
Sword, Ronald. "Hexadecaphonic Scales for Guitar." IAAA Press, UK-USA. First Ed: Feb, 2010. (superfourth tuning).
* [[User:VectorGraphics/16edo theory|Vector's approach]]
Sword, Ronald. "Esadekaphonic Scales for Guitar." IAAA Press, UK-USA. First Ed: April, 2009. (semi-diminished fourth tuning)
* [[Armodue harmony]]


==Compositions==
{{Todo|inline=1| expand }}


[[http://www.io.com/%7Ehmiller/midi/16tet.mid|Etude in 16-tone equal tuning]] by Herman Miller
== Intervals ==
[[http://www.jeanpierrepoulin.com/mp3/Armodue78.mp3|Armodue78]] by [[@http://www.jeanpierrepoulin.com/|Jean-Pierre Poulin]]
{{Mavila}}


[[@http://ronsword.com/sounds/16chordscale_improv.mp3|Chord-scale Improvisation in 16-tet]] by Ron Sword
Alternatively, one can use Armodue nine-nominal notation.
[[@http://www.ronsword.com/sounds/ron_sword_16_improv.mp3|Chromatic 16-tet Improvisation]] by Ron Sword
 
[[@http://www.ronswohttp://www.ronsword.com/sounds/Ron%20Sword%20-%2016-tone%20acoustic%20improvisation.mp3|16-tet Acoustic Improvisation]] by Ron Sword
{| class="wikitable center-all"
[[@http://www.ronsword.com/sounds/ronsword_miracle528_part3.mp3|16-tet Miracle Drone]] by Ron Sword</pre></div>
|-
<h4>Original HTML content:</h4>
! rowspan="2" | Degree
<div style="width:100%; max-height:400pt; overflow:auto; background-color:#f8f9fa; border: 1px solid #eaecf0; padding:0em"><pre style="margin:0px;border:none;background:none;word-wrap:break-word;width:200%;white-space: pre-wrap ! important" class="old-revision-html">&lt;html&gt;&lt;head&gt;&lt;title&gt;16edo&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;!-- ws:start:WikiTextHeadingRule:0:&amp;lt;h1&amp;gt; --&gt;&lt;h1 id="toc0"&gt;&lt;a name="x16 tone equal temperament"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:0 --&gt;16 tone equal temperament&lt;/h1&gt;
! rowspan="2" | [[Cent]]s
&lt;br /&gt;
! rowspan="2" | Approximate<br>ratios*
&lt;!-- ws:start:WikiTextHeadingRule:2:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc1"&gt;&lt;a name="x16 tone equal temperament-Theory"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:2 --&gt;Theory&lt;/h2&gt;
! colspan="6" | Names
16-tone is a tuning which has been less popular but can be very rewarding. 16-tone equal temperament is the division of the octave into sixteen narrow chromatic semitones. The 25cent difference in the steps can sound to a trained ear like phantom Pythagorean commas / enharmonic genera. It can be treated as 4 interwoven diminished seven arpeggios, or as 2 interwoven 8-edo scales (narrow 11-limit whole tones which when stacked produce minor third intervals). 16-tone has the same stacked minor thirds diminished seventh scale/chord available in 12, and It is often cited that the most consonant chords involve the tritone. (However with the correct timbre, one can suggest consonance with any tuning.)&lt;br /&gt;
|-
&lt;br /&gt;
! colspan="2" | Antidiatonic
One neat xenharmonic aspect of 16-tone is how the 11-limit whole tone scale using the neutral second, interlocks with the diminished scale, similar to how the augmented scale and whole tone relationship in 12-tone (the whole tone divides the major third in 12, in 16-it's the minor third).&lt;br /&gt;
! colspan="2" | Diatonic
&lt;br /&gt;
! Just
In 16-tone, because of the 25 cent difference in the steps from 100 in 12-tone, a western &amp;quot;twelve tone ear&amp;quot; hears dissonance with more complexity and less familiarity than even 24-tone, yet within a more manageable number of tones. Hence, why 16-tone is a truly Xenharmonic system.&lt;br /&gt;
! Simplified
&lt;br /&gt;
|-
0. 1/1 C&lt;br /&gt;
| 0
1. 75.000 cents C# Dbb&lt;br /&gt;
| 0
2. 150.000 cents Cx Db&lt;br /&gt;
| 1/1
3. 225.000 cents D&lt;br /&gt;
| unison
4. 300.000 cents D# Ebb&lt;br /&gt;
| D
5. 375.000 cents Dx Eb&lt;br /&gt;
| unison
6. 450.000 cents E Fb&lt;br /&gt;
| D
7. 525.000 cents F&lt;br /&gt;
| unison
8. 600.000 cents F# Gbb&lt;br /&gt;
| unison
9. 675.000 cents Fx Gb&lt;br /&gt;
|-
10. 750.000 cents G Abb&lt;br /&gt;
| 1
11. 825.000 cents G# Ab&lt;br /&gt;
| 75
12. 900.000 cents A&lt;br /&gt;
| 28/27, 27/26
13. 975.000 cents A# Bbb&lt;br /&gt;
| aug 1, dim 2nd
14. 1050.000 cents Ax Bb&lt;br /&gt;
| D♯, E♭
15. 1125.000 cents B Cb&lt;br /&gt;
| dim 1, aug 2nd
16. 2/1 C&lt;br /&gt;
| D♭, E♯
&lt;br /&gt;
| subminor 2nd
&lt;br /&gt;
| min 2nd
1 octave into 8 equal parts = 2 2 2 2 2 2 2 2 = 3/4 tone Neutral Second Progression&lt;br /&gt;
|-
2 octaves into 8 equal parts = 4 4 4 4 4 4 4 4 = Classic Minor Third Progression&lt;br /&gt;
| 2
3 octaves into 8 equal parts = 6 6 6 6 6 6 6 6 = 9/4tone or Septimal semi-dim Fourth Progression&lt;br /&gt;
| 150
4 octaves into 8 equal parts = 8 8 8 8 8 8 8 8 = Tritone Progression&lt;br /&gt;
| 35/32
5 octaves into 8 equal parts = 10 10 10 10 10 10 10 10 = Septimal semi-aug Fifth Progression&lt;br /&gt;
| minor 2nd
6 octaves into 8 equal parts = 12 12 12 12 12 12 12 12 = Classic Sixth Progression&lt;br /&gt;
| E
7 octaves into 8 equal parts = 14 14 14 14 14 14 14 14 = 21/4 tone or Neutral Seventh Progression&lt;br /&gt;
| major 2nd
8 octaves into 8 equal parts = 16 16 16 16 16 16 16 16 = Octave Progression&lt;br /&gt;
| E
9 octaves into 8 equal parts = 18 18 18 18 18 18 18 18 = Ninth Progression&lt;br /&gt;
| neutral 2nd
&lt;br /&gt;
| maj 2nd
&lt;br /&gt;
|-
&lt;br /&gt;
| 3
&lt;br /&gt;
| 225
&lt;br /&gt;
| 8/7
&lt;a class="wiki_link_ext" href="http://www.armodue.com/ricerche.htm" rel="nofollow"&gt;Armodue&lt;/a&gt;: Italian pages of theory for 16-tone (esadekaphonic) system, including compositions - translation, anyone?&lt;br /&gt;
| major 2nd
&lt;br /&gt;
| E♯
&lt;!-- ws:start:WikiTextRemoteImageRule:6:&amp;lt;img src=&amp;quot;http://ronsword.com/images/ESG_sm.jpg&amp;quot; alt=&amp;quot;&amp;quot; title=&amp;quot;&amp;quot; style=&amp;quot;height: 161px; width: 120px;&amp;quot; /&amp;gt; --&gt;&lt;img src="http://ronsword.com/images/ESG_sm.jpg" alt="external image ESG_sm.jpg" title="external image ESG_sm.jpg" style="height: 161px; width: 120px;" /&gt;&lt;!-- ws:end:WikiTextRemoteImageRule:6 --&gt;&lt;br /&gt;
| minor 2nd
Sword, Ronald. &amp;quot;Hexadecaphonic Scales for Guitar.&amp;quot; IAAA Press, UK-USA. First Ed: Feb, 2010. (superfourth tuning).&lt;br /&gt;
| E♭
Sword, Ronald. &amp;quot;Esadekaphonic Scales for Guitar.&amp;quot; IAAA Press, UK-USA. First Ed: April, 2009. (semi-diminished fourth tuning)&lt;br /&gt;
| supermajor 2nd,<br>septimal whole-tone
&lt;br /&gt;
| perf 2nd
&lt;!-- ws:start:WikiTextHeadingRule:4:&amp;lt;h2&amp;gt; --&gt;&lt;h2 id="toc2"&gt;&lt;a name="x16 tone equal temperament-Compositions"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:4 --&gt;Compositions&lt;/h2&gt;
|-
&lt;br /&gt;
| 4
&lt;a class="wiki_link_ext" href="http://www.io.com/%7Ehmiller/midi/16tet.mid" rel="nofollow"&gt;Etude in 16-tone equal tuning&lt;/a&gt; by Herman Miller&lt;br /&gt;
| 300
&lt;a class="wiki_link_ext" href="http://www.jeanpierrepoulin.com/mp3/Armodue78.mp3" rel="nofollow"&gt;Armodue78&lt;/a&gt; by &lt;a class="wiki_link_ext" href="http://www.jeanpierrepoulin.com/" rel="nofollow" target="_blank"&gt;Jean-Pierre Poulin&lt;/a&gt;&lt;br /&gt;
| 19/16, 32/27
&lt;br /&gt;
| minor 3rd
&lt;a class="wiki_link_ext" href="http://ronsword.com/sounds/16chordscale_improv.mp3" rel="nofollow" target="_blank"&gt;Chord-scale Improvisation in 16-tet&lt;/a&gt; by Ron Sword&lt;br /&gt;
| F♭
&lt;a class="wiki_link_ext" href="http://www.ronsword.com/sounds/ron_sword_16_improv.mp3" rel="nofollow" target="_blank"&gt;Chromatic 16-tet Improvisation&lt;/a&gt; by Ron Sword&lt;br /&gt;
| major 3rd
&lt;a class="wiki_link_ext" href="http://www.ronswohttp://www.ronsword.com/sounds/Ron%20Sword%20-%2016-tone%20acoustic%20improvisation.mp3" rel="nofollow" target="_blank"&gt;16-tet Acoustic Improvisation&lt;/a&gt; by Ron Sword&lt;br /&gt;
| F♯
&lt;a class="wiki_link_ext" href="http://www.ronsword.com/sounds/ronsword_miracle528_part3.mp3" rel="nofollow" target="_blank"&gt;16-tet Miracle Drone&lt;/a&gt; by Ron Sword&lt;/body&gt;&lt;/html&gt;</pre></div>
| minor 3rd
| min 3rd
|-
| 5
| 375
| 5/4, 16/13, 26/21
| major 3rd
| F
| minor 3rd
| F
| major 3rd
| maj 3rd
|-
| 6
| 450
| 13/10, 35/27
| aug 3rd,<br>dim 4th
| F♯, G♭
| dim 3rd,<br>aug 4th
| F♭, G♯
| sub-4th,<br>supermajor 3rd
| min 4th
|-
| 7
| 525
| 19/14, 27/20, 35/26, 256/189
| perfect 4th
| G
| perfect 4th
| G
| wide 4th
| maj 4th
|-
| 8
| 600
| 7/5, 10/7
| aug 4th,<br>dim 5th
| G♯, A♭
| dim 4th,<br>aug 5th
| G♭, A♯
| tritone
| aug 4th,<br>dim 5th
|-
| 9
| 675
| 28/19, 40/27, 52/35, 189/128
| perfect 5th
| A
| perfect 5th
| A
| narrow 5th
| min 5th
|-
| 10
| 750
| 20/13, 54/35
| aug 5th,<br>dim 6th
| A♯, B♭
| dim 5th,<br>aug 6th
| A♭, B♯
| super-5th,<br>subminor 6th
| maj 5th
|-
| 11
| 825
| 8/5, 13/8, 21/13
| minor 6th
| B
| major 6th
| B
| minor 6th
| min 6th
|-
| 12
| 900
| 27/16, 32/19
| major 6th
| B♯
| minor 6th
| B♭
| major 6th
| maj 6th
|-
| 13
| 975
| 7/4
| minor 7th
| C♭
| major 7th
| C♯
| subminor 7th,<br>septimal minor 7th
| perf 7th
|-
| 14
| 1050
| 64/35
| major 7th
| C
| minor 7th
| C
| neutral 7th
| min 7th
|-
| 15
| 1125
| 27/14, 52/27
| aug 7th,<br>dim 8ve
| C♯, D♭
| dim 7th,<br>aug 8ve
| C♭, D♯
| supermajor 7th
| maj 7th
|-
| 16
| 1200
| 2/1
| 8ve
| D
| 8ve
| D
| octave
| octave
|}
<nowiki />* Based on treating 16edo as a 2.5.7.13.19.27 subgroup temperament; other approaches are possible.
 
== Notation ==
16edo notation can be easy utilizing [[Goldsmith's Circle]] of keys, nominals, and respective notation{{clarify}}. The nominals for a 6 line staff can be switched for [[Erv Wilson]]'s Beta and Epsilon additions to A–G. The Armodue model uses a 4-line staff for 16edo.
 
Mos scales like Mavila[7] (or "inverse/anti-diatonic" which reverses step sizes of diatonic from LLsLLLs to ssLsssL in the heptatonic variation) can work as an alternative to the traditional diatonic scale, while maintaining conventional A–G ♯/♭ notation as described above. Alternatively, one can utilize the Mavila[9] mos, for a sort of "hyper-diatonic" scale of 7 large steps and 2 small steps. [[Armodue theory|Armodue notation]] of 16edo "Mavila[9] Staff" does just this, and places the arrangement (222122221) on nine white "natural" keys of the 16edo keyboard. If the 9-note (enneatonic) mos is adopted as a notational basis for 16edo, then we need an entirely different set of interval classes than any of the heptatonic classes described above; perhaps it even makes sense to refer to the octave ([[2/1]]) as the "[[decave]]". This is identical to the KISS notation for this scale when using numbers.
 
{| class="wikitable center-all"
|-
! Degree
! Cents
! colspan="2" | Mavila[9] notation
|-
| 0
| 0
| unison
| 1
|-
| 1
| 75
| aug unison, minor 2nd
| 1♯, 2♭
|-
| 2
| 150
| major 2nd
| 2
|-
| 3
| 225
| aug 2nd, minor 3rd
| 2♯, 3♭
|-
| 4
| 300
| major 3rd, dim 4th
| 3, 4𝄫
|-
| 5
| 375
| minor 4th
| 4♭
|-
| 6
| 450
| major 4th,<br>dim 5th
| 4, 5♭
|-
| 7
| 525
| aug 4th, minor 5th
| 4♯, 5
|-
| 8
| 600
| aug 5th, dim 6th
| 5♯, 6♭
|-
| 9
| 675
| perfect 6th, dim 7th
| 6, 7𝄫
|-
| 10
| 750
| aug 6th, minor 7th
| 6♯, 7♭
|-
| 11
| 825
| major 7th
| 7
|-
| 12
| 900
| aug 7th, minor 8th
| 7♯, 8♭
|-
| 13
| 975
| major 8th, dim 9th
| 8, 9𝄫
|-
| 14
| 1050
| minor 9th
| 9
|-
| 15
| 1125
| major 9th, dim 10ve
| 9♯, 1♭
|-
| 16
| 1200
| 10ve (Decave)
| 1
|}
 
=== Sagittal notation ===
This notation uses the same sagittal sequence as [[21edo #Sagittal notation|21edo]].
 
<imagemap>
File:16-EDO_Sagittal.svg
desc none
rect 80 0 300 50 [[Sagittal_notation]]
rect 471 0 631 80 [https://sagittal.org#periodic-table Periodic table of EDOs with sagittal notation]
rect 20 80 471 106 [[Fractional_3-limit_notation#Bad-fifths_limma-fraction_notation | limma-fraction notation]]
default [[File:16-EDO_Sagittal.svg]]
</imagemap>
 
=== Armodue notation (4-line staff) ===
[http://www.armodue.com/ricerche.htm Armodue]: Pierpaolo Beretta's website for his Armodue theory for 16edo (esadekaphonic), including compositions.
 
For resources on the Armodue theory, see the [[Armodue]] on this wiki
 
== Chord names ==
16edo chords can be named using ups and downs. Using diatonic interval names, chord names bear little relationship to the sound: a minor chord (spelled {{dash|A, C, E|med}}) sounds like [[4:5:6]], the classical major triad, and a major chord (spelled {{dash|C, E, G|med}}) sounds like [[10:12:15]], a classical minor triad! Instead, using antidiatonic names, the chord names will match the sound&mdash;but finding the name from the spelling follows the rules of antidiatonic rather than diatonic interval arithmetic.
 
{| class="wikitable center-all"
|-
! rowspan="2" | Chord
! rowspan="2" | JI ratios
! colspan="6" | Name
|-
! colspan="3" | Diatonic
! colspan="3" | Antidiatonic
|-
| {{dash|0, 5, 9|med}}
| 4:5:6
| D F A
| Dm
| D minor
| D F A
| D
| D major
|-
| {{dash|0, 4, 9|med}}
| 10:12:15
| D F♯ A
| D
| D major
| D F♭ A
| Dm
| D minor
|-
| {{dash|0, 4, 8|med}}
| 5:6:7
| D F♯ A♯
| Daug
| D augmented
| D F♭ A♭
| Ddim
| D diminished
|-
| {{dash|0, 5, 10|med}}
|
| D F A♭
| Ddim
| D diminished
| D F A♯
| Daug
| D augmented
|-
| {{dash|0, 5, 9, 13|med}}
| 4:5:6:7
| D F A C♯
| Dm(M7)
| D minor-major
| D F A C♭
| D7
| D seven
|-
| {{dash|0, 5, 9, 12|med}}
|
| D F A Bb
| Dm(♭6)
| D minor flat-six
| D F A B♯
| D6
| D six
|-
| {{dash|0, 5, 9, 14|med}}
|
| D F A C
| Dm7
| D minor seven
| D F A C
| DM7
| D major seven
|-
| {{dash|0, 4, 9, 13|med}}
|
| D F♯ A C♯
| DM7
| D major seven
| D F♭ A C♭
| DM7
| D minor seven
|}
 
Alterations are always enclosed in parentheses, additions never are. An up or down immediately after the chord root affects the 3rd, 6th, 7th, and/or the 11th (every other note of a stacked-3rds chord {{dash|6, 1, 3, 5, 7, 9, 11, 13}}). See [[Ups and downs notation #Chords and chord progressions]] for more examples.
 
Using antidiatonic names, if you're used to diatonic interval arithmetic, you can do antidiatonic interval arithmetic by following the simple guideline that qualities are '''reversed''' from standard diatonic. As in, just as adding two major seconds gives you a major third in 12edo, adding two minor seconds gives a minor third in 16edo.
 
That is, reversing means exchanging major for minor, aug for dim, and sharp for flat. Perfect and natural are unaffected.
 
Examples can be found at the bottom of the page.
 
== Approximation to JI ==
=== Selected just intervals by error ===
{{Q-odd-limit intervals|16}}
 
It's worth noting that the 525{{c}} interval is almost exactly halfway in between 4/3 and 11/8, making it very discordant, although playing this in the context of a larger chord, and with specialized timbres, can make this less noticeable.
 
[[File:16ed2-001.svg|alt=alt : Your browser has no SVG support.]]
 
[[:File:16ed2-001.svg|16ed2-001.svg]]
 
== Octave theory ==
The scale supports the diminished temperament with its 1/4 octave period, though its generator size, equal to its step size of 75{{c}}, is smaller than ideal. Its very flat 3/2 of 675{{c}} [[support]]s Mavila temperament, where the mapping of major and minor is reversed. The temperament could be popular for its 150{{c}} "3/4-tone" equal division of the traditional 300{{c}} minor third.
 
16edo is also a tuning for the [[Jubilismic clan|no-threes 7-limit temperament tempering out 50/49]]. This has a period of a half-octave (600{{c}}), and a generator of a flat septimal major 2nd, for which 16edo uses 3\16. For this, there are mos scales of sizes 4, 6, and 10; extending this temperament to the full 7-limit can produce either Lemba or Astrology (16edo supports both, but is not a very accurate tuning of either).
 
16edo is also a tuning for the no-threes 7-limit temperament tempering out [http://x31eq.com/cgi-bin/uv.cgi?uvs=%5B-19%2C7%2C1%3E&limit=2_5_7 546875:524288], which has a flat major third as generator, for which 16-EDO provides 5\16 octaves. For this, there are MOS of sizes 7, 10, and 13; these are shown below under "'''Magic family of scales'''".
 
[[Easley Blackwood Jr]] writes of 16edo:
 
"''16 notes: This tuning is best thought of as a combination of four intertwined diminished seventh chords. Since 12-note tuning can be regarded as a combination of three diminished seventh chords, it is plain that the two tunings have elements in common. The most obvious difference in the way the two tunings sound and work is that triads in 16-note tuning, although recognizable, are too discordant to serve as the final harmony in cadences. Keys can still be established by successions of altered subdominant and dominant harmonies, however, and the Etude is based mainly upon this property. The fundamental consonant harmony employed is a minor triad with an added minor seventh.''"
 
From a harmonic series perspective, if we take 13\16 as a 7/4 ratio approximation, sharp by 6.174{{c}}, and take the 300{{c}} minor third as an approximation of the harmonic 19th ([[19/16]], approximately 297.5{{c}}), that can combine with the approximation of the harmonic seventh to form a 16:19:28 triad .
 
The interval between the 28th &amp; 19th harmonics, 28:19, measures approximately 671.3{{c}}, which is 3.7{{c}} away from 16edo's "narrow fifth". Another voicing for this chord is 14:16:19, which features 19:14 as the outer interval (528.7{{c}} just, 525.0{{c}} in 16edo). A perhaps more consonant open voicing is 7:16:19
 
== Regular temperament properties ==
=== Uniform maps ===
{{Uniform map|edo=16}}
 
=== Commas ===
16et [[tempering out|tempers out]] the following [[comma]]s. (Note: This assumes [[val]] {{val| 16 25 37 45 55 59 }}.)
 
{| class="commatable wikitable center-all left-3 right-4 left-6"
|-
! [[Harmonic limit|Prime<br>limit]]
! [[Ratio]]<ref group=note>Ratios longer than 10 digits are presented by placeholders with informative hints</ref>
! [[Monzo]]
! [[Cent]]s
! [[Color name]]
! Name
|-
| 5
| [[135/128]]
| {{monzo| -7 3 1 }}
| 92.18
| Layobi
| Mavila comma, major chroma
|-
| 5
| [[648/625]]
| {{monzo| 3 4 -4 }}
| 62.57
| Quadgu
| Diminished comma, major diesis
|-
| 5
| [[3125/3072]]
| {{monzo| -10 -1 5 }}
| 29.61
| Laquinyo
| Magic comma
|-
| 5
| [[6115295232/6103515625|(20 digits)]]
| {{monzo| 23 6 -14 }}
| 3.34
| Sasepbiru
| [[Vishnuzma]]
|-
| 7
| [[36/35]]
| {{monzo| 2 2 -1 -1 }}
| 48.77
| Rugu
| Mint comma, septimal quartertone
|-
| 7
| [[525/512]]
| {{monzo| -9 1 2 1 }}
| 43.41
| Lazoyoyo
| Avicennma
|-
| 7
| [[50/49]]
| {{monzo| 1 0 2 -2 }}
| 34.98
| Biruyo
| Jubilisma
|-
| 7
| [[64827/64000]]
| {{monzo| -9 3 -3 4 }}
| 22.23
| Laquadzo-atrigu
| Squalentine comma
|-
| 7
| [[3125/3087]]
| {{monzo| 0 -2 5 -3 }}
| 21.18
| Triru-aquinyo
| Gariboh comma
|-
| 7
| [[126/125]]
| {{monzo| 1 2 -3 1 }}
| 13.79
| Zotrigu
| Starling comma
|-
| 7
| [[1029/1024]]
| {{monzo| -10 1 0 3 }}
| 8.43
| Latrizo
| Gamelisma
|-
| 7
| [[6144/6125]]
| {{monzo| 11 1 -3 -2 }}
| 5.36
| Sarurutrigu
| Porwell comma
|-
| 11
| [[121/120]]
| {{monzo| -3 -1 -1 0 2 }}
| 14.37
| Lologu
| Biyatisma
|-
| 11
| [[176/175]]
| {{monzo| 4 0 -2 -1 1 }}
| 9.86
| Lorugugu
| Valinorsma
|-
| 11
| [[385/384]]
| {{monzo| -7 -1 1 1 1 }}
| 4.50
| Lozoyo
| Keenanisma
|-
| 11
| [[441/440]]
| {{monzo| -3 2 -1 2 -1 }}
| 3.93
| Luzozogu
| Werckisma
|-
| 11
| [[3025/3024]]
| {{monzo| -4 -3 2 -1 2 }}
| 0.57
| Loloruyoyo
| Lehmerisma
|}
 
=== Rank-2 temperaments ===
* [[List of 16et rank two temperaments by badness]]
 
{| class="wikitable center-1 center-2"
|+ Table of temperaments by generator
|-
! Periods<br>per 8ve
! Generator
! Temperaments
|-
| 1
| 1\16
| [[Valentine]], [[slurpee]]
|-
| 1
| 3\16
| [[Gorgo]]
|-
| 1
| 5\16
| [[Magic]]/[[muggles]]
|-
| 1
| 7\16
| [[Mavila]]/[[armodue]]
|-
| 2
| 1\16
| [[Bipelog]]
|-
| 2
| 3\16
| [[Lemba]], [[astrology]]
|-
| 4
| 1\16
| [[Diminished (temperament)|Diminished]]/[[demolished]]
|-
| 8
| 1\16
| [[Semidim]]
|}
 
== Scales ==
* {{Main|List of MOS scales in {{PAGENAME}}}}
Important mosses include:
* [[magic]] anti-diatonic 3L4s 1414141 (5\16, 1\1)
* [[magic]] superdiatonic 3L7s 1311311311 (5\16, 1\1)
* [[magic]] chromatic 11121121112 3L10s (5\16, 1\1)
* [[mavila]] anti-diatonic 2L5s 2223223 (9\16, 1\1)
* [[mavila]] superdiatonic 7L2s 222212221 (9\16, 1\1)
* [[gorgo]] 5L1s 333331 (3\16, 1\1)
* [[lemba]] 4L2s 332332 (3\16, 1\2)
 
 
'''Mavila'''
 
{| class="wikitable"
|-
| [5]:
| 5 2 5 2 2
|
|-
| [7]:
| 3 2 2 3 2 2 2
|[[File:MavilaAntidiatonic16edo.mp3]]
|-
| [9]:
| 1 2 2 2 1 2 2 2 2
|[[File:MavilaSuperdiatonic16edo.mp3]]
|}
See also [[Mavila Temperament Modal Harmony]].
 
'''Diminished'''
 
{| class="wikitable"
|-
| [8]:
| 1 3 1 3 1 3 1 3
|[[File:htgt16edo.mp3]]
|-
| [12]:
| 1 1 2 1 1 2 1 1 2 1 1 2
|
|}
 
'''Magic'''
 
[7]: 1 4 1 4 1 4 1
 
[10]: 1 3 1 1 3 1 1 1 3 1
 
[13]: 1 1 2 1 1 1 2 1 1 1 2 1 1
 
'''Cynder/Gorgo'''
 
[5]: 3 3 4 3 3
 
[6]: 3 3 1 3 3 3
 
[11]: 1 2 1 2 1 2 1 2 1 2 1
 
'''Lemba/Astrology'''
 
[4]: 3 5 3 5
 
[6]: 3 2 3 3 2 3
 
[10]: 2 1 2 1 2 2 1 2 1 2
 
== Metallic harmony ==
In 16edo, triadic harmony can be based on on heptatonic sevenths (or seconds) rather than thirds. For instance, 16edo approximates 7/4 well enough to use
 
it in place of the usual 3/2, and in Mavila[7] this 7/4 approximation shares an interval class with a well-approximated 11/6 (at 1050{{c}}). Stacking these two intervals reaches 2025{{c}}, or a minor 6th plus an octave. Thus the out-of-tune 675{{c}} interval is bypassed, and all the dyads in the triad are consonant.
 
Depending on whether the Mavila[7] major 7th or minor 7th is used, one of two triads is produced: a small one, {{nowrap|{{dash|0, 975, 2025{{c}}}}}}, and a large one, {{nowrap|{{dash|0, 1050, 2025{{c}}}}}}. William Lynch, a major proponent of this style of harmony, calls these two triads "hard" and "soft", respectively. In addition, two other "symmetrical" triads are also obvious possible chords: a narrow symmetrical triad at {{nowrap|{{dash|0, 975, 1950{{c}}}}}}, and a wide symmetrical triad at {{nowrap|{{dash|0, 1050, 2100{{c}}}}}}. These are sort of analogous to "diminished" and "augmented" triads. The characteristic buzzy/metallic sound of these seventh-based triads inspired William Lynch to call them "Metallic triads".
 
=== MOS scales supporting metallic harmony in 16edo ===
The ssLsssL mode of Mavila[7] contains two hard triads on degrees 1 and 4 and two soft triads on degrees 2 and 6. The other three chords are wide symmetrical triads 0-1050-2025{{c}}. In Mavila[9], hard and soft triads cease to share a triad class, as 975{{c}} is a major 8th, while 1050{{c}} is a minor 9th; the triads may still be used, but parallel harmonic motion will function differently.
 
Another possible MOS scales for this approach would be Lemba[6], which gives two each of the soft, hard, and narrow symmetric triads.
 
''See: [[Metallic Harmony]].''
 
== Diagrams ==
'''16-tone piano layout based on the mavila[7]/antidiatonic scale'''
 
This Layout places mavila[7] on the black keys and mavila[9] on the white keys, according to antidiatonic notation.
 
[[File:16-EDO-PIano-Diagram.png|alt=16-EDO-PIano-Diagram.png|748x293px|16-EDO-PIano-Diagram.png]]
 
'''Interleaved edos'''
 
A visualization of 16edo being two interleaved copies of [[8edo]] and four interleaved copies of [[4edo]].
 
[[File:16edo_wheel_01.png|alt=16edo wheel 01.png|325x325px|16edo wheel 01.png]]
 
=== Lumatone mapping ===
 
See: [[Lumatone mapping for 16edo]]
 
== Interval arithmetic examples ==
These examples show the correspondence between interval arithmetic using diatonic and antidiatonic notation.
{| class="wikitable" style="text-align: center;"
! colspan="2" |Diatonic (i.e. 12edo)
! colspan="2" |Antidiatonic (i.e. 16edo)
|-
! Question
! Result
! Question
! Result
|-
| M2 + M2
| aug3
| m2 + m2
| dim3
|-
| D to F♯
| aug3
| D to F♭
| dim3
|-
| D to F
| M3
| D to F
| m3
|-
| E♭ + m3
| Gbb
| E♯ + M3
| G♯♯
|-
| E♭ + P5
| B♭
| E♯ + P5
| B♯
|-
| A minor chord
| A C♭ E
| A major chord
| A C♯ E
|-
| E♭ major chord
| E♭ G♭ D♭
| E♯ minor chord
| E♯ G♯ B♯
|-
| Gm7 = G + m3 + P5 + m7
| G B D F♭
| G + M3 + P5 + M7
| G B D F♯
|-
| A♭7aug = A♭ + M3 + A5 + m7
| A♭ C♭ E Gbb
| A♯ + m3 + d5 + M7
| A♯ C♯ E G♯♯
|-
| what chord is D F A♯?
| D + M3 + A5 = Daug
| D F A♭
| D + m3 + d5
|-
| what chord is C E G♭ B♭?
| C + m3 + d5 + d7 = Cdim7
| C E G♯ B♯
| C + M3 + A5 + A7
|-
| C major scale = C + M2 + M3<br>+ P4 + P5 + M6 + M7 + P8
| C D♯ E♯ F<br>G A♯ B♯ C
| C + m2 + m3 + P4<br>+ P5 + m6 + m7 + P8
| C D♭ E♭ F<br>G A♭ B♭ C
|-
| C minor scale = C + M2 + m3<br>+ P4 + P5 + m6 + m7 + P8
| C D♯ E F<br>G A B C
| C + m2 + M3 + P4<br>+ P5 + M6 + M7 + P8
| C D♭ E F<br>G A B C
|-
| what scale is A B♯ C♭ D<br>E F G♭ A?
| A + M2 + m3 + P4<br>+ P5 + M6 + m7 = A dorian
| A B♭ C♯ D<br>E F G♯ A
| A + m2 + M3 + P4<br>+ P5 + m6 + M7
|}
 
== Music ==
{{Catrel| 16edo tracks }}
 
; [[Abnormality]]
* [https://www.youtube.com/watch?v=zao6E8GdQh0 ''it's not not opposite day''] (2023)
* [https://www.youtube.com/watch?v=1pa3dztk8o0 ''nightfall''] (2024)
 
; [[Beheld]]
* [https://www.youtube.com/watch?v=kzPeVB2mncc ''Nebulous vibe'']
 
; [[City of the Asleep]]
* [https://cityoftheasleep.bandcamp.com/track/huckleberry-regional-preserve ''Huckleberry Regional Preserve'']
* [https://cityoftheasleep.bandcamp.com/track/illegible-red-ink ''Illegible Red Ink'']
 
; [[Bryan Deister]]
* [https://www.youtube.com/shorts/IfVvjoRqqNk ''16edo jam''] (2025)
* [https://www.youtube.com/watch?v=cUgbkkIvy0g ''Waltz in 16edo''] (2025)
 
; [[E8 Heterotic]]
* [https://youtu.be/a8Jgb_XIj7c "Hexed"]
 
; [[Fabrizio Fiale]]
* [https://www.soundclick.com/music/songInfo.cfm?songID=12370649 ''Prenestyna Highway'']
* [https://www.soundclick.com/music/songInfo.cfm?songID=7715803 ''Palestrina Morta, fantasia quasi una sonata'']
* [https://soundcloud.com/fff-fiale/in-sospensione-neutra ''In Sospensione Neutra'']
 
; [[Aaron Andrew Hunt]]
* [https://soundcloud.com/uz1kt3k/fuga-a3-in-16et ''Fuga a3 in 16ET'']
 
; [[Last Sacrament]]
* [http://lastsacrament.bandcamp.com/album/enantiodromia ''Enantiodromia''] (album) (from 2013)
* [https://lastsacrament.bandcamp.com/album/maniacal-meditations-ep ''Maniacal Meditations''] (EP) (2013 EP)
 
; [[William Lynch]]
* [[:File:Mavila_Jazz_Rhodes_1.mp3|''Mavila Jazz Groove'']]
* [[:File:mavila4.mp3|''Cold, Dark Night for a Dance'']]
 
; [[Claudi Meneghin]]
* [https://www.youtube.com/watch?v=vIWxP_C0aUM ''Mavila Fugue'']
* [https://www.youtube.com/watch?v=KYkmT46oGhw ''Canon at the Semitone on The Mother's Malison Theme'', for Cor Anglais and Violin] ([https://www.youtube.com/watch?v=I6BUauD8EaE for Organ])
* [https://www.youtube.com/watch?v=P7LUSRd1kMg ''Canon on Twinkle Twinkle Little Star'', for Organ] (2023) ([https://www.youtube.com/watch?v=QHJYyqge_JQ for Baroque Oboe and Viola])
* [https://www.youtube.com/shorts/I4-URAGgQMQ ''Baroque Micropiece in 16edo''] (2024)
 
; [[Herman Miller]]
* [http://www.io.com/%7Ehmiller/midi/16tet.mid ''Etude in 16-tone equal tuning'']{{dead link}} [http://clones.soonlabel.com/public/micro/gene_ward_smith/Others/Herman/16tet.mp3 play]{{dead link}} ([http://soonlabel.com/xenharmonic/archives/2604 organ version]{{dead link}})
 
; [[Nae Ayy]]
* [https://www.youtube.com/watch?v=H74psBvdeT4 ''Rambling'']
* [https://www.youtube.com/watch?v=OAhV8ol2Hbw ''a n g e r y'']
* [https://www.youtube.com/watch?v=-MboZelse90 ''Maundering'']
 
; [[NullPointerException Music]]
* [https://www.youtube.com/watch?v=LXsZIbT6wpM ''Edolian - Seventhic''] (2020)
* [https://www.youtube.com/watch?v=UrQPr7V9feA ''Finality''] (2021)
 
; [[Jean-Pierre Poulin]]
* [http://www.jeanpierrepoulin.com/mp3/Armodue78.mp3 ''Armodue78'']
 
; [[Ron Sword]]
* [https://soundcloud.com/ron-sword/mavila-fog ''The Foggy Road from Pasadena'']{{dead link}}
 
; [[Chris Vaisvil]]
* [http://micro.soonlabel.com/16-ET/20120527-16-malathion.mp3 ''Malathion''] - [http://chrisvaisvil.com/?p=2358 details]
* [http://micro.soonlabel.com/16-ET/20130216_16edo_vesta.mp3 ''Being of Vesta''] - [http://chrisvaisvil.com/?p=3061 details]
* [http://micro.soonlabel.com/simultaneous-tunings/20130607_thin_ice_christiane.mp3 ''Thin Ice''] - [http://chrisvaisvil.com/?p=3354 details]
 
; [[Stephen Weigel]]
* [https://www.youtube.com/watch?v=0t7ZmlmrE0Q ''Shot Fades the Sum Of'']
* [https://www.youtube.com/watch?v=2y01AlgOPvk ''When the Saints go Marching'']
 
; [[Randy Winchester]]
* [http://micro.soonlabel.com/gene_ward_smith/Others/Winchester/05%20-%205.%2016%20octave.mp3 Comets Over Flatland 5]{{dead link}}
 
; [[Woyten]]
* [https://www.youtube.com/watch?v=LLgClI8pyNw ''Don't Take Five''] (2021)
 
; [[Xotla]]
* "Robotic Dialogue" from ''Microtones & Garden Gnomes'' (2017) [https://xotla.bandcamp.com/track/robotic-dialogue-16edo Bandcamp] | [https://youtu.be/sFxny2JNGpo?si=8MKPuIMCR_Xx1DTi YouTube]
* "Cognitive Climate" from Science Fraction (2022) [https://open.spotify.com/track/52v382I0OUotQjHo0pPoXs Spotify] | [https://xotla.bandcamp.com/track/cognitive-climate-16edo Bandcamp] | [https://youtu.be/dNBDG4wymN8?si=XGbpNkRp3qUo0Xgb YouTube]
 
; [[User:Nick_Vuci|Nick Vuci]]
* [https://en.xen.wiki/images/4/44/NickVuci-20220206-16edo-Prelude.mp3 ''Prelude'']
* [https://en.xen.wiki/images/9/9a/NickVuci-20231102-16edo-SofterForJ.mp3 ''Softer for J'']
* [https://en.xen.wiki/images/4/48/NickVuci-20220306-16edo-Invention.mp3 ''2-Part Invention'']
* [https://en.xen.wiki/w/User:Nick_Vuci#Modal_Studies ''Mavila Modal Studies'']
* [https://en.xen.wiki/images/c/c6/NV-20210526-16NEJI128-SerialismDubstepSketch.mp3 ''EDM based on a tone row'']
 
; [[Zewen Senpai]]
* [https://www.youtube.com/watch?v=QOzBGd64Pi4 ''Simple Ambient Study No. 1'']
 
== Notes ==
<references group=note/>
 
== See also ==
* [[57ed12]] - octave stretched version of 16edo; 57ed12 improves 3.5.11.13.17 but damages 2.7
 
=== Approaches ===
* [[User:VectorGraphics/16edo theory|Vector's approach]]
* [[Armodue theory]]
** [[Armodue armonia]]
 
== References ==
<references />
 
== Further reading ==
* [[Sword, Ron]]. ''[https://ronsword.bigcartel.com/product/esadekaphonic-scales-for-guitar Hexadecaphonic Scales for Guitar: A Microtonal Guitar Method Book, for Theory, Scales, and Information on the Sixteen Equal Division Octave System]''. 2009. (semi-diminished fourth tuning)
* Sword, Ron. ''[http://www.metatonalmusic.com/books.html Hexadecaphonic Scales for Guitar: Theory, Scales and Information on the Sixteen Equal Division Octave system]''. 2010? (superfourth tuning)
* Sword, Ron. "Thesaurus of Melodic Patterns and Intervals for 16-Tones" IAAA Press, USA. First Ed: August, 2011{{citation needed}}
 
[[Category:Teentuning]]
[[Category:Listen]]
[[Category:Mavila]]
[[Category:Guitar]]
[[Category:Pages with internal sound examples]]
 
{{Todo|cleanup}}

Latest revision as of 00:08, 16 August 2025

← 15edo 16edo 17edo →
Prime factorization 24
Step size 75 ¢ 
Fifth 9\16 (675 ¢)
Semitones (A1:m2) -1:3 (-75 ¢ : 225 ¢)
Dual sharp fifth 10\16 (750 ¢) (→ 5\8)
Dual flat fifth 9\16 (675 ¢)
Dual major 2nd 3\16 (225 ¢)
Consistency limit 7
Distinct consistency limit 5

16 equal divisions of the octave (abbreviated 16edo or 16ed2), also called 16-tone equal temperament (16tet) or 16 equal temperament (16et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 16 equal parts of exactly 75 ¢ each. Each step represents a frequency ratio of 21/16, or the 16th root of 2.

16edo's step size is sometimes called an eka, a term proposed by Luca Attanasio, from Sanskrit एक (éka, "one", "unit"),[1] when used as an interval size unit, especially in the context of Armodue theory.

Theory

The perfect fifth of 16edo is 27 cents flat of 3/2, flatter than that of 7edo so that it generates an antidiatonic instead of diatonic scale, but sharper than 9edo's fifth, to which it similarly retains the characteristic of being a fifth while being distinctly flat of 3/2. If the fifth is interpreted as 3/2, this befits a tuning of mavila, the 5-limit temperament that tempers out 135/128, such that a stack of four fifths gives a 6/5 minor third instead of the familiar 5/4 major third as in meantone. A more accurate restriction is mabilic, which discards the inaccurate mapping of 3 while keeping the fifth as a generator.

This leads to some confusion in regards to interval names, as what would be major in diatonic now sounds minor; there are several ways to handle this (see in #Intervals).

In general, 16edo tends to better approximate the differences between odd harmonics than odd harmonics themselves, though it has a 5th harmonic which is only 11 cents flat, and a 7th harmonic which is only 6 cents sharp. As such, 16edo can be seen as an approach to tuning that takes advantage of the idea that simpler ratios can be functionally approximated with greater error (i.e. a 3/2 that's 25 cents flat is still recognizable, but a 5/4 that's 25 cents flat loses much of its identity and a 7/4 that's 25 cents flat is completely unrecognizable). In essence, 16edo's 3, 5, and 7 are backwards from 12edo's, with 7 being nearly perfect, 5 being decent, and 3 being distinctly out-of-tune.

In terms of higher primes, both 11 and 13 are approximated very flat, with the 11/8 not distinguished from 4/3, and 13/8 not distinguished from 8/5. 16edo represents the no-9 no-15 25-odd-limit consistently, however.

Four steps of 16edo gives the 300 ¢ minor third interval shared by 12edo (and other multiples of 4edo), which approximates 6/5, and thus tempers out 648/625, the diminished comma. This means that the familiar diminished seventh chord may be built on any scale step with four unique tetrads up to octave equivalence. The minor third is of course not distinguished from the septimal subminor third, 7/6, so 36/35 and moreover 50/49 are tempered out, making 16edo a possible tuning for septimal diminished. Another possible interpretation for this interval is the 19th harmonic, 19/16.

16edo shares several similarities with 15edo. They both share mappings of 8/7, 5/4, and 3/2 in terms of edosteps – in fact, they are both valentine tunings, and thus slendric tunings. 16edo and 15edo also both have three types of seconds and two types of thirds (not including arto/tendo thirds). However, 15edo's fifth is sharp while 16's is flat.

16edo works as a tuning for extraclassical tonality, due to its ultramajor third of 450 cents.

Odd harmonics

Approximation of odd harmonics in 16edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) -27.0 -11.3 +6.2 +21.1 -26.3 -15.5 +36.7 -30.0 +2.5 -20.8 -28.3
Relative (%) -35.9 -15.1 +8.2 +28.1 -35.1 -20.7 +49.0 -39.9 +3.3 -27.7 -37.7
Steps
(reduced)
25
(9)
37
(5)
45
(13)
51
(3)
55
(7)
59
(11)
63
(15)
65
(1)
68
(4)
70
(6)
72
(8)

Octave stretch

Having a flat tendency, 16et is best tuned with stretched octaves, which improve the accuracy of wide-voiced JI chords and rooted harmonics especially on inharmonic timbres such as bells and gamelans, with 25edt, 41ed6, and 57ed12 being good options.

Subsets and supersets

Since 16 factors into primes as 24, 16edo has subset edos 2, 4, and 8.

Composition theory

Todo: expand

Intervals

16edo can be notated with conventional notation, including the staff, note names, relative notation, etc. in two ways.

The first, melodic notation, defines sharp/flat, major/minor, and aug/dim in terms of the antidiatonic scale, such that sharp is higher pitched than flat, and major/aug is wider than minor/dim, as would be expected. Because it does not follow diatonic conventions, conventional interval arithmetic no longer works, e.g. M2 + M2 is not M3, and D + M2 is not E. Because antidiatonic is the sister scale to diatonic, you can solve this by swapping major and minor in interval arithmetic rules. Note that the notes that form chords are different from in diatonic: for example, a major chord, P1–M3–P5, is approximately 4:5:6 as would be expected, but is notated C–E♯–G on C.

Alternatively, one can essentially pretend the antidiatonic scale is a normal diatonic, meaning that sharp is lower in pitch than flat (since the "S" step is larger than the "L" step) and major/aug is narrower than minor/dim, known as harmonic notation. The primary purpose of doing this is to allow music notated in 12edo or another diatonic system to be directly translated on the fly, or to allow support for 16edo in tools that only allow chain-of-fifths notation, and it carries over the way interval arithmetic works from diatonic notation, at the cost of notating the sizes of intervals and the shapes of chords incorrectly: that is, a major chord, P1–M3–P5, is notated C–E–G on C, but is no longer ~4:5:6 (since the third is closer to a minor third).

For the sake of clarity, the first notation is commonly called melodic notation, and the second is called harmonic notation, but this is a bit of a misnomer as both preserve different features of the notation of harmony.

Comparison of notations
Notation P1–M3–P5 ~ 4:5:6 P1–M3–P5 = C–E–G on C
Diatonic No Yes
Antidiatonic Yes No

Alternatively, one can use Armodue nine-nominal notation.

Degree Cents Approximate
ratios*
Names
Antidiatonic Diatonic Just Simplified
0 0 1/1 unison D unison D unison unison
1 75 28/27, 27/26 aug 1, dim 2nd D♯, E♭ dim 1, aug 2nd D♭, E♯ subminor 2nd min 2nd
2 150 35/32 minor 2nd E major 2nd E neutral 2nd maj 2nd
3 225 8/7 major 2nd E♯ minor 2nd E♭ supermajor 2nd,
septimal whole-tone
perf 2nd
4 300 19/16, 32/27 minor 3rd F♭ major 3rd F♯ minor 3rd min 3rd
5 375 5/4, 16/13, 26/21 major 3rd F minor 3rd F major 3rd maj 3rd
6 450 13/10, 35/27 aug 3rd,
dim 4th
F♯, G♭ dim 3rd,
aug 4th
F♭, G♯ sub-4th,
supermajor 3rd
min 4th
7 525 19/14, 27/20, 35/26, 256/189 perfect 4th G perfect 4th G wide 4th maj 4th
8 600 7/5, 10/7 aug 4th,
dim 5th
G♯, A♭ dim 4th,
aug 5th
G♭, A♯ tritone aug 4th,
dim 5th
9 675 28/19, 40/27, 52/35, 189/128 perfect 5th A perfect 5th A narrow 5th min 5th
10 750 20/13, 54/35 aug 5th,
dim 6th
A♯, B♭ dim 5th,
aug 6th
A♭, B♯ super-5th,
subminor 6th
maj 5th
11 825 8/5, 13/8, 21/13 minor 6th B major 6th B minor 6th min 6th
12 900 27/16, 32/19 major 6th B♯ minor 6th B♭ major 6th maj 6th
13 975 7/4 minor 7th C♭ major 7th C♯ subminor 7th,
septimal minor 7th
perf 7th
14 1050 64/35 major 7th C minor 7th C neutral 7th min 7th
15 1125 27/14, 52/27 aug 7th,
dim 8ve
C♯, D♭ dim 7th,
aug 8ve
C♭, D♯ supermajor 7th maj 7th
16 1200 2/1 8ve D 8ve D octave octave

* Based on treating 16edo as a 2.5.7.13.19.27 subgroup temperament; other approaches are possible.

Notation

16edo notation can be easy utilizing Goldsmith's Circle of keys, nominals, and respective notation[clarification needed]. The nominals for a 6 line staff can be switched for Erv Wilson's Beta and Epsilon additions to A–G. The Armodue model uses a 4-line staff for 16edo.

Mos scales like Mavila[7] (or "inverse/anti-diatonic" which reverses step sizes of diatonic from LLsLLLs to ssLsssL in the heptatonic variation) can work as an alternative to the traditional diatonic scale, while maintaining conventional A–G ♯/♭ notation as described above. Alternatively, one can utilize the Mavila[9] mos, for a sort of "hyper-diatonic" scale of 7 large steps and 2 small steps. Armodue notation of 16edo "Mavila[9] Staff" does just this, and places the arrangement (222122221) on nine white "natural" keys of the 16edo keyboard. If the 9-note (enneatonic) mos is adopted as a notational basis for 16edo, then we need an entirely different set of interval classes than any of the heptatonic classes described above; perhaps it even makes sense to refer to the octave (2/1) as the "decave". This is identical to the KISS notation for this scale when using numbers.

Degree Cents Mavila[9] notation
0 0 unison 1
1 75 aug unison, minor 2nd 1♯, 2♭
2 150 major 2nd 2
3 225 aug 2nd, minor 3rd 2♯, 3♭
4 300 major 3rd, dim 4th 3, 4𝄫
5 375 minor 4th 4♭
6 450 major 4th,
dim 5th
4, 5♭
7 525 aug 4th, minor 5th 4♯, 5
8 600 aug 5th, dim 6th 5♯, 6♭
9 675 perfect 6th, dim 7th 6, 7𝄫
10 750 aug 6th, minor 7th 6♯, 7♭
11 825 major 7th 7
12 900 aug 7th, minor 8th 7♯, 8♭
13 975 major 8th, dim 9th 8, 9𝄫
14 1050 minor 9th 9
15 1125 major 9th, dim 10ve 9♯, 1♭
16 1200 10ve (Decave) 1

Sagittal notation

This notation uses the same sagittal sequence as 21edo.

Sagittal notationPeriodic table of EDOs with sagittal notationlimma-fraction notation

Armodue notation (4-line staff)

Armodue: Pierpaolo Beretta's website for his Armodue theory for 16edo (esadekaphonic), including compositions.

For resources on the Armodue theory, see the Armodue on this wiki

Chord names

16edo chords can be named using ups and downs. Using diatonic interval names, chord names bear little relationship to the sound: a minor chord (spelled A – C – E) sounds like 4:5:6, the classical major triad, and a major chord (spelled C – E – G) sounds like 10:12:15, a classical minor triad! Instead, using antidiatonic names, the chord names will match the sound—but finding the name from the spelling follows the rules of antidiatonic rather than diatonic interval arithmetic.

Chord JI ratios Name
Diatonic Antidiatonic
0 – 5 – 9 4:5:6 D F A Dm D minor D F A D D major
0 – 4 – 9 10:12:15 D F♯ A D D major D F♭ A Dm D minor
0 – 4 – 8 5:6:7 D F♯ A♯ Daug D augmented D F♭ A♭ Ddim D diminished
0 – 5 – 10 D F A♭ Ddim D diminished D F A♯ Daug D augmented
0 – 5 – 9 – 13 4:5:6:7 D F A C♯ Dm(M7) D minor-major D F A C♭ D7 D seven
0 – 5 – 9 – 12 D F A Bb Dm(♭6) D minor flat-six D F A B♯ D6 D six
0 – 5 – 9 – 14 D F A C Dm7 D minor seven D F A C DM7 D major seven
0 – 4 – 9 – 13 D F♯ A C♯ DM7 D major seven D F♭ A C♭ DM7 D minor seven

Alterations are always enclosed in parentheses, additions never are. An up or down immediately after the chord root affects the 3rd, 6th, 7th, and/or the 11th (every other note of a stacked-3rds chord 6 – 1 – 3 – 5 – 7 – 9 – 11 – 13). See Ups and downs notation #Chords and chord progressions for more examples.

Using antidiatonic names, if you're used to diatonic interval arithmetic, you can do antidiatonic interval arithmetic by following the simple guideline that qualities are reversed from standard diatonic. As in, just as adding two major seconds gives you a major third in 12edo, adding two minor seconds gives a minor third in 16edo.

That is, reversing means exchanging major for minor, aug for dim, and sharp for flat. Perfect and natural are unaffected.

Examples can be found at the bottom of the page.

Approximation to JI

Selected just intervals by error

The following tables show how 15-odd-limit intervals are represented in 16edo. Prime harmonics are in bold; inconsistent intervals are in italics.

15-odd-limit intervals in 16edo (direct approximation, even if inconsistent)
Interval and complement Error (abs, ¢) Error (rel, %)
1/1, 2/1 0.000 0.0
11/6, 12/11 0.637 0.8
13/10, 20/13 4.214 5.6
7/4, 8/7 6.174 8.2
13/11, 22/13 10.790 14.4
5/4, 8/5 11.314 15.1
13/12, 24/13 11.427 15.2
15/11, 22/15 11.951 15.9
9/7, 14/9 14.916 19.9
11/10, 20/11 15.004 20.0
13/8, 16/13 15.528 20.7
5/3, 6/5 15.641 20.9
7/5, 10/7 17.488 23.3
9/8, 16/9 21.090 28.1
13/7, 14/13 21.702 28.9
15/13, 26/15 22.741 30.3
11/8, 16/11 26.318 35.1
3/2, 4/3 26.955 35.9
11/9, 18/11 27.592 36.8
15/14, 28/15 30.557 40.7
9/5, 10/9 32.404 43.2
11/7, 14/11 32.492 43.3
7/6, 12/7 33.129 44.2
13/9, 18/13 36.618 48.8
15/8, 16/15 36.731 49.0
15-odd-limit intervals in 16edo (patent val mapping)
Interval and complement Error (abs, ¢) Error (rel, %)
1/1, 2/1 0.000 0.0
11/6, 12/11 0.637 0.8
13/10, 20/13 4.214 5.6
7/4, 8/7 6.174 8.2
13/11, 22/13 10.790 14.4
5/4, 8/5 11.314 15.1
13/12, 24/13 11.427 15.2
15/11, 22/15 11.951 15.9
11/10, 20/11 15.004 20.0
13/8, 16/13 15.528 20.7
5/3, 6/5 15.641 20.9
7/5, 10/7 17.488 23.3
13/7, 14/13 21.702 28.9
15/13, 26/15 22.741 30.3
11/8, 16/11 26.318 35.1
3/2, 4/3 26.955 35.9
11/9, 18/11 27.592 36.8
11/7, 14/11 32.492 43.3
7/6, 12/7 33.129 44.2
15/8, 16/15 38.269 51.0
13/9, 18/13 38.382 51.2
9/5, 10/9 42.596 56.8
15/14, 28/15 44.443 59.3
9/8, 16/9 53.910 71.9
9/7, 14/9 60.084 80.1

It's worth noting that the 525 ¢ interval is almost exactly halfway in between 4/3 and 11/8, making it very discordant, although playing this in the context of a larger chord, and with specialized timbres, can make this less noticeable.

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16ed2-001.svg

Octave theory

The scale supports the diminished temperament with its 1/4 octave period, though its generator size, equal to its step size of 75 ¢, is smaller than ideal. Its very flat 3/2 of 675 ¢ supports Mavila temperament, where the mapping of major and minor is reversed. The temperament could be popular for its 150 ¢ "3/4-tone" equal division of the traditional 300 ¢ minor third.

16edo is also a tuning for the no-threes 7-limit temperament tempering out 50/49. This has a period of a half-octave (600 ¢), and a generator of a flat septimal major 2nd, for which 16edo uses 3\16. For this, there are mos scales of sizes 4, 6, and 10; extending this temperament to the full 7-limit can produce either Lemba or Astrology (16edo supports both, but is not a very accurate tuning of either).

16edo is also a tuning for the no-threes 7-limit temperament tempering out 546875:524288, which has a flat major third as generator, for which 16-EDO provides 5\16 octaves. For this, there are MOS of sizes 7, 10, and 13; these are shown below under "Magic family of scales".

Easley Blackwood Jr writes of 16edo:

"16 notes: This tuning is best thought of as a combination of four intertwined diminished seventh chords. Since 12-note tuning can be regarded as a combination of three diminished seventh chords, it is plain that the two tunings have elements in common. The most obvious difference in the way the two tunings sound and work is that triads in 16-note tuning, although recognizable, are too discordant to serve as the final harmony in cadences. Keys can still be established by successions of altered subdominant and dominant harmonies, however, and the Etude is based mainly upon this property. The fundamental consonant harmony employed is a minor triad with an added minor seventh."

From a harmonic series perspective, if we take 13\16 as a 7/4 ratio approximation, sharp by 6.174 ¢, and take the 300 ¢ minor third as an approximation of the harmonic 19th (19/16, approximately 297.5 ¢), that can combine with the approximation of the harmonic seventh to form a 16:19:28 triad .

The interval between the 28th & 19th harmonics, 28:19, measures approximately 671.3 ¢, which is 3.7 ¢ away from 16edo's "narrow fifth". Another voicing for this chord is 14:16:19, which features 19:14 as the outer interval (528.7 ¢ just, 525.0 ¢ in 16edo). A perhaps more consonant open voicing is 7:16:19

Regular temperament properties

Uniform maps

13-limit uniform maps between 15.8 and 16.2
Min. size Max. size Wart notation Map
15.7540 15.8089 16dff 16 25 37 44 55 58]
15.8089 15.8512 16d 16 25 37 44 55 59]
15.8512 16.0431 16 16 25 37 45 55 59]
16.0431 16.0792 16e 16 25 37 45 56 59]
16.0792 16.0887 16ef 16 25 37 45 56 60]
16.0887 16.1504 16bef 16 26 37 45 56 60]
16.1504 16.2074 16bcef 16 26 38 45 56 60]

Commas

16et tempers out the following commas. (Note: This assumes val 16 25 37 45 55 59].)

Prime
limit
Ratio[note 1] Monzo Cents Color name Name
5 135/128 [-7 3 1 92.18 Layobi Mavila comma, major chroma
5 648/625 [3 4 -4 62.57 Quadgu Diminished comma, major diesis
5 3125/3072 [-10 -1 5 29.61 Laquinyo Magic comma
5 (20 digits) [23 6 -14 3.34 Sasepbiru Vishnuzma
7 36/35 [2 2 -1 -1 48.77 Rugu Mint comma, septimal quartertone
7 525/512 [-9 1 2 1 43.41 Lazoyoyo Avicennma
7 50/49 [1 0 2 -2 34.98 Biruyo Jubilisma
7 64827/64000 [-9 3 -3 4 22.23 Laquadzo-atrigu Squalentine comma
7 3125/3087 [0 -2 5 -3 21.18 Triru-aquinyo Gariboh comma
7 126/125 [1 2 -3 1 13.79 Zotrigu Starling comma
7 1029/1024 [-10 1 0 3 8.43 Latrizo Gamelisma
7 6144/6125 [11 1 -3 -2 5.36 Sarurutrigu Porwell comma
11 121/120 [-3 -1 -1 0 2 14.37 Lologu Biyatisma
11 176/175 [4 0 -2 -1 1 9.86 Lorugugu Valinorsma
11 385/384 [-7 -1 1 1 1 4.50 Lozoyo Keenanisma
11 441/440 [-3 2 -1 2 -1 3.93 Luzozogu Werckisma
11 3025/3024 [-4 -3 2 -1 2 0.57 Loloruyoyo Lehmerisma

Rank-2 temperaments

Table of temperaments by generator
Periods
per 8ve
Generator Temperaments
1 1\16 Valentine, slurpee
1 3\16 Gorgo
1 5\16 Magic/muggles
1 7\16 Mavila/armodue
2 1\16 Bipelog
2 3\16 Lemba, astrology
4 1\16 Diminished/demolished
8 1\16 Semidim

Scales

Important mosses include:

  • magic anti-diatonic 3L4s 1414141 (5\16, 1\1)
  • magic superdiatonic 3L7s 1311311311 (5\16, 1\1)
  • magic chromatic 11121121112 3L10s (5\16, 1\1)
  • mavila anti-diatonic 2L5s 2223223 (9\16, 1\1)
  • mavila superdiatonic 7L2s 222212221 (9\16, 1\1)
  • gorgo 5L1s 333331 (3\16, 1\1)
  • lemba 4L2s 332332 (3\16, 1\2)


Mavila

[5]: 5 2 5 2 2
[7]: 3 2 2 3 2 2 2
[9]: 1 2 2 2 1 2 2 2 2

See also Mavila Temperament Modal Harmony.

Diminished

[8]: 1 3 1 3 1 3 1 3
[12]: 1 1 2 1 1 2 1 1 2 1 1 2

Magic

[7]: 1 4 1 4 1 4 1

[10]: 1 3 1 1 3 1 1 1 3 1

[13]: 1 1 2 1 1 1 2 1 1 1 2 1 1

Cynder/Gorgo

[5]: 3 3 4 3 3

[6]: 3 3 1 3 3 3

[11]: 1 2 1 2 1 2 1 2 1 2 1

Lemba/Astrology

[4]: 3 5 3 5

[6]: 3 2 3 3 2 3

[10]: 2 1 2 1 2 2 1 2 1 2

Metallic harmony

In 16edo, triadic harmony can be based on on heptatonic sevenths (or seconds) rather than thirds. For instance, 16edo approximates 7/4 well enough to use

it in place of the usual 3/2, and in Mavila[7] this 7/4 approximation shares an interval class with a well-approximated 11/6 (at 1050 ¢). Stacking these two intervals reaches 2025 ¢, or a minor 6th plus an octave. Thus the out-of-tune 675 ¢ interval is bypassed, and all the dyads in the triad are consonant.

Depending on whether the Mavila[7] major 7th or minor 7th is used, one of two triads is produced: a small one, 0 – 975 – 2025 ¢, and a large one, 0 – 1050 – 2025 ¢. William Lynch, a major proponent of this style of harmony, calls these two triads "hard" and "soft", respectively. In addition, two other "symmetrical" triads are also obvious possible chords: a narrow symmetrical triad at 0 – 975 – 1950 ¢, and a wide symmetrical triad at 0 – 1050 – 2100 ¢. These are sort of analogous to "diminished" and "augmented" triads. The characteristic buzzy/metallic sound of these seventh-based triads inspired William Lynch to call them "Metallic triads".

MOS scales supporting metallic harmony in 16edo

The ssLsssL mode of Mavila[7] contains two hard triads on degrees 1 and 4 and two soft triads on degrees 2 and 6. The other three chords are wide symmetrical triads 0-1050-2025 ¢. In Mavila[9], hard and soft triads cease to share a triad class, as 975 ¢ is a major 8th, while 1050 ¢ is a minor 9th; the triads may still be used, but parallel harmonic motion will function differently.

Another possible MOS scales for this approach would be Lemba[6], which gives two each of the soft, hard, and narrow symmetric triads.

See: Metallic Harmony.

Diagrams

16-tone piano layout based on the mavila[7]/antidiatonic scale

This Layout places mavila[7] on the black keys and mavila[9] on the white keys, according to antidiatonic notation.

16-EDO-PIano-Diagram.png

Interleaved edos

A visualization of 16edo being two interleaved copies of 8edo and four interleaved copies of 4edo.

16edo wheel 01.png

Lumatone mapping

See: Lumatone mapping for 16edo

Interval arithmetic examples

These examples show the correspondence between interval arithmetic using diatonic and antidiatonic notation.

Diatonic (i.e. 12edo) Antidiatonic (i.e. 16edo)
Question Result Question Result
M2 + M2 aug3 m2 + m2 dim3
D to F♯ aug3 D to F♭ dim3
D to F M3 D to F m3
E♭ + m3 Gbb E♯ + M3 G♯♯
E♭ + P5 B♭ E♯ + P5 B♯
A minor chord A C♭ E A major chord A C♯ E
E♭ major chord E♭ G♭ D♭ E♯ minor chord E♯ G♯ B♯
Gm7 = G + m3 + P5 + m7 G B D F♭ G + M3 + P5 + M7 G B D F♯
A♭7aug = A♭ + M3 + A5 + m7 A♭ C♭ E Gbb A♯ + m3 + d5 + M7 A♯ C♯ E G♯♯
what chord is D F A♯? D + M3 + A5 = Daug D F A♭ D + m3 + d5
what chord is C E G♭ B♭? C + m3 + d5 + d7 = Cdim7 C E G♯ B♯ C + M3 + A5 + A7
C major scale = C + M2 + M3
+ P4 + P5 + M6 + M7 + P8
C D♯ E♯ F
G A♯ B♯ C
C + m2 + m3 + P4
+ P5 + m6 + m7 + P8
C D♭ E♭ F
G A♭ B♭ C
C minor scale = C + M2 + m3
+ P4 + P5 + m6 + m7 + P8
C D♯ E F
G A B C
C + m2 + M3 + P4
+ P5 + M6 + M7 + P8
C D♭ E F
G A B C
what scale is A B♯ C♭ D
E F G♭ A?
A + M2 + m3 + P4
+ P5 + M6 + m7 = A dorian
A B♭ C♯ D
E F G♯ A
A + m2 + M3 + P4
+ P5 + m6 + M7

Music

See also: Category:16edo tracks
Abnormality
Beheld
City of the Asleep
Bryan Deister
E8 Heterotic
Fabrizio Fiale
Aaron Andrew Hunt
Last Sacrament
William Lynch
Claudi Meneghin
Herman Miller
Nae Ayy
NullPointerException Music
Jean-Pierre Poulin
Ron Sword
Chris Vaisvil
Stephen Weigel
Randy Winchester
Woyten
Xotla
Nick Vuci
Zewen Senpai

Notes

  1. Ratios longer than 10 digits are presented by placeholders with informative hints

See also

  • 57ed12 - octave stretched version of 16edo; 57ed12 improves 3.5.11.13.17 but damages 2.7

Approaches

References

Further reading