16edo

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=16 tone equal temperament= 

==Theory== 
16-tone equal temperament is the division of the octave into sixteen narrow chromatic semitones. It can be thought of as a Diminished Temperament for it's 1/4 octave period. Also as a rough Slendro temperament with a supermajor second generator (250cents [ideally 233cents]), or as a Pelog or Mavila temperament generated by (fifths greater than 600 and less than 686 cents). The temperament could be popular for it's easy manageability of 150 cent intervals 3/4, 9/4 and 21/4-tones.
The 25 cent difference in the steps can have a similar effect the scales of Olympos have with buried enharmonic genera.

It can be It can be treated as 4 interwoven diminished seventh arpeggios, or as 2 interwoven 8-edo scales (narrow 11-limit whole tones which when stacked produce traditional 300 cent 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. There are two minor seventh intervals, a harmonic seventh at step 13, a 7/4 ratio approximation, off by 3.5879 cents, followed by an undecimal 11/6 ratio or neutral seventh. The septimal can be the 9/4th tone or septimal semi diminished fourth (35/27 ratio) , semi-augmented fifth (54/35), harmonic seventh (7/4), and septimal whole tone 8/7. The Undecimal intervals are the 3/4 tone or undecimal neutral second (12/11), and the 21/4th tone or undecimal neutral seventh (11/6).

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 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).

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 and a strange familiarity - the diminished. Hence, why 16-tone is a truly Xenharmonic system.
16-edo Diatonic scales are dissonant because of the 25 cent raised superfourth in conjunction with the 25 cent subtracted fifth / poor 3/2 approximation. The septimal semi diminished fourth can be more desirable. Perhaps using Moment of Symmetry Scales an alternative temperament families like the "Anti-Diatonic" Mavila (which reverses step sizes of diatonic), Diminished, Happy, Rice, Grumpy, Mosh, Magic, Lemba, Cynder, and Decatonic can be more interesting and suitable.


Cycle of 7/4 (Armodue):
1 8 6# 5 3 1# 8# 7 5# 3# 2 9 7# 6 4 2# 1

<span class="text_exposed_show"> Diminished family of scales (1 3 1 3 1 3 1 3, 1 1 2 1 1 2 1 1 2 1 1 2)
Magic family of scales (1 4 1 4 1 4 1, 1 3 1 1 3 1 1 1 3 1, 1 1 2 1 1 1 2 1 1 1 2 1 1)
Cynder family (3 3 4 3 3, 3 3 1 3 3 3, 1 2 1 2 1 2 1 2 1 2 1)
Lemba family (3 2 3 3 2 3, 2 1 2 1 2 2 1 2 1 2)</span>

Like the conventional 12-tet diatonic and pentatonic (meantone) scales, these arise from tempering out a unison vector from Fokker periodicity blocks. Only in 16-EDO, that unison vector is 135:<span class="text_exposed_show">128, instead of 81:80. </span>

0. 1/1 C
1. 75.00 cents C# Dbb
2. 150.00 cents Cx Db
3. 225.00 cents D
4. 300.00 cents D# Ebb
5. 375.00 cents Dx Eb
6. 450.00 cents E Fb
7. 525.00 cents F
8. 600.00 cents F# Gbb
9. 675.00 cents Fx Gb
10. 750.00 cents G Abb
11. 825.00 cents G# Ab
12. 900.00 cents A
13. 975.00 cents A# Bbb
14. 1050.00 cents Ax Bb
15. 1125.00 cents B Cb
16. 2/1 C


1 octave into 8 equal parts = 2 2 2 2 2 2 2 2 = 3/4 tone Neutral Second Progression
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





[[http://www.armodue.com/ricerche.htm|Armodue]]: Italian pages of theory for 16-tone (esadekaphonic) system, including compositions - translation, anyone?

[[image:http://ronsword.com/images/ESG_sm.jpg width="120" height="161"]]
Sword, Ronald. "Hexadecaphonic Scales for Guitar." IAAA Press, UK-USA. First Ed: Feb, 2010. (superfourth tuning).
Sword, Ronald. "Esadekaphonic Scales for Guitar." IAAA Press, UK-USA. First Ed: April, 2009. (semi-diminished fourth tuning)

==Compositions== 

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

[[@http://ronsword.com/sounds/16chordscale_improv.mp3|Chord-scale Improvisation in 16-tet]] by Ron Sword
[[@http://www.ronsword.com/sounds/ron_sword_16_improv.mp3|Chromatic 16-tet Improvisation]] by Ron Sword
[[@http://www.ronsword.com/sounds/Ron%20Sword%20-%2016-tone%20acoustic%20improvisation.mp3|16-tet Acoustic Improvisation]] by Ron Sword
[[@http://www.ronsword.com/sounds/ronsword_miracle528_part3.mp3|16-tet Magic Drone]] by Ron Sword

Original HTML content:

<html><head><title>16edo</title></head><body><!-- ws:start:WikiTextHeadingRule:0:&lt;h1&gt; --><h1 id="toc0"><a name="x16 tone equal temperament"></a><!-- ws:end:WikiTextHeadingRule:0 -->16 tone equal temperament</h1>
 <br />
<!-- ws:start:WikiTextHeadingRule:2:&lt;h2&gt; --><h2 id="toc1"><a name="x16 tone equal temperament-Theory"></a><!-- ws:end:WikiTextHeadingRule:2 -->Theory</h2>
 16-tone equal temperament is the division of the octave into sixteen narrow chromatic semitones. It can be thought of as a Diminished Temperament for it's 1/4 octave period. Also as a rough Slendro temperament with a supermajor second generator (250cents [ideally 233cents]), or as a Pelog or Mavila temperament generated by (fifths greater than 600 and less than 686 cents). The temperament could be popular for it's easy manageability of 150 cent intervals 3/4, 9/4 and 21/4-tones.<br />
The 25 cent difference in the steps can have a similar effect the scales of Olympos have with buried enharmonic genera.<br />
<br />
It can be It can be treated as 4 interwoven diminished seventh arpeggios, or as 2 interwoven 8-edo scales (narrow 11-limit whole tones which when stacked produce traditional 300 cent 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. There are two minor seventh intervals, a harmonic seventh at step 13, a 7/4 ratio approximation, off by 3.5879 cents, followed by an undecimal 11/6 ratio or neutral seventh. The septimal can be the 9/4th tone or septimal semi diminished fourth (35/27 ratio) , semi-augmented fifth (54/35), harmonic seventh (7/4), and septimal whole tone 8/7. The Undecimal intervals are the 3/4 tone or undecimal neutral second (12/11), and the 21/4th tone or undecimal neutral seventh (11/6).<br />
<br />
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 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).<br />
<br />
In 16-tone, because of the 25 cent difference in the steps from 100 in 12-tone, a western &quot;twelve tone ear&quot; hears dissonance with more complexity and less familiarity than even 24-tone, yet within a more manageable number of tones and a strange familiarity - the diminished. Hence, why 16-tone is a truly Xenharmonic system.<br />
16-edo Diatonic scales are dissonant because of the 25 cent raised superfourth in conjunction with the 25 cent subtracted fifth / poor 3/2 approximation. The septimal semi diminished fourth can be more desirable. Perhaps using Moment of Symmetry Scales an alternative temperament families like the &quot;Anti-Diatonic&quot; Mavila (which reverses step sizes of diatonic), Diminished, Happy, Rice, Grumpy, Mosh, Magic, Lemba, Cynder, and Decatonic can be more interesting and suitable.<br />
<br />
<br />
Cycle of 7/4 (Armodue):<br />
1 8 6# 5 3 1# 8# 7 5# 3# 2 9 7# 6 4 2# 1<br />
<br />
<span class="text_exposed_show"> Diminished family of scales (1 3 1 3 1 3 1 3, 1 1 2 1 1 2 1 1 2 1 1 2)<br />
Magic family of scales (1 4 1 4 1 4 1, 1 3 1 1 3 1 1 1 3 1, 1 1 2 1 1 1 2 1 1 1 2 1 1)<br />
Cynder family (3 3 4 3 3, 3 3 1 3 3 3, 1 2 1 2 1 2 1 2 1 2 1)<br />
Lemba family (3 2 3 3 2 3, 2 1 2 1 2 2 1 2 1 2)</span><br />
<br />
Like the conventional 12-tet diatonic and pentatonic (meantone) scales, these arise from tempering out a unison vector from Fokker periodicity blocks. Only in 16-EDO, that unison vector is 135:<span class="text_exposed_show">128, instead of 81:80. </span><br />
<br />
0. 1/1 C<br />
1. 75.00 cents C# Dbb<br />
2. 150.00 cents Cx Db<br />
3. 225.00 cents D<br />
4. 300.00 cents D# Ebb<br />
5. 375.00 cents Dx Eb<br />
6. 450.00 cents E Fb<br />
7. 525.00 cents F<br />
8. 600.00 cents F# Gbb<br />
9. 675.00 cents Fx Gb<br />
10. 750.00 cents G Abb<br />
11. 825.00 cents G# Ab<br />
12. 900.00 cents A<br />
13. 975.00 cents A# Bbb<br />
14. 1050.00 cents Ax Bb<br />
15. 1125.00 cents B Cb<br />
16. 2/1 C<br />
<br />
<br />
1 octave into 8 equal parts = 2 2 2 2 2 2 2 2 = 3/4 tone Neutral Second Progression<br />
2 octaves into 8 equal parts = 4 4 4 4 4 4 4 4 = Classic Minor Third Progression<br />
3 octaves into 8 equal parts = 6 6 6 6 6 6 6 6 = 9/4tone or Septimal semi-dim Fourth Progression<br />
4 octaves into 8 equal parts = 8 8 8 8 8 8 8 8 = Tritone Progression<br />
5 octaves into 8 equal parts = 10 10 10 10 10 10 10 10 = Septimal semi-aug Fifth Progression<br />
6 octaves into 8 equal parts = 12 12 12 12 12 12 12 12 = Classic Sixth Progression<br />
7 octaves into 8 equal parts = 14 14 14 14 14 14 14 14 = 21/4 tone or Neutral Seventh Progression<br />
8 octaves into 8 equal parts = 16 16 16 16 16 16 16 16 = Octave Progression<br />
9 octaves into 8 equal parts = 18 18 18 18 18 18 18 18 = Ninth Progression<br />
<br />
<br />
<br />
<br />
<br />
<a class="wiki_link_ext" href="http://www.armodue.com/ricerche.htm" rel="nofollow">Armodue</a>: Italian pages of theory for 16-tone (esadekaphonic) system, including compositions - translation, anyone?<br />
<br />
<!-- ws:start:WikiTextRemoteImageRule:6:&lt;img src=&quot;http://ronsword.com/images/ESG_sm.jpg&quot; alt=&quot;&quot; title=&quot;&quot; style=&quot;height: 161px; width: 120px;&quot; /&gt; --><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;" /><!-- ws:end:WikiTextRemoteImageRule:6 --><br />
Sword, Ronald. &quot;Hexadecaphonic Scales for Guitar.&quot; IAAA Press, UK-USA. First Ed: Feb, 2010. (superfourth tuning).<br />
Sword, Ronald. &quot;Esadekaphonic Scales for Guitar.&quot; IAAA Press, UK-USA. First Ed: April, 2009. (semi-diminished fourth tuning)<br />
<br />
<!-- ws:start:WikiTextHeadingRule:4:&lt;h2&gt; --><h2 id="toc2"><a name="x16 tone equal temperament-Compositions"></a><!-- ws:end:WikiTextHeadingRule:4 -->Compositions</h2>
 <br />
<a class="wiki_link_ext" href="http://www.io.com/%7Ehmiller/midi/16tet.mid" rel="nofollow">Etude in 16-tone equal tuning</a> by Herman Miller<br />
<a class="wiki_link_ext" href="http://www.jeanpierrepoulin.com/mp3/Armodue78.mp3" rel="nofollow">Armodue78</a> by <a class="wiki_link_ext" href="http://www.jeanpierrepoulin.com/" rel="nofollow" target="_blank">Jean-Pierre Poulin</a><br />
<br />
<a class="wiki_link_ext" href="http://ronsword.com/sounds/16chordscale_improv.mp3" rel="nofollow" target="_blank">Chord-scale Improvisation in 16-tet</a> by Ron Sword<br />
<a class="wiki_link_ext" href="http://www.ronsword.com/sounds/ron_sword_16_improv.mp3" rel="nofollow" target="_blank">Chromatic 16-tet Improvisation</a> by Ron Sword<br />
<a class="wiki_link_ext" href="http://www.ronsword.com/sounds/Ron%20Sword%20-%2016-tone%20acoustic%20improvisation.mp3" rel="nofollow" target="_blank">16-tet Acoustic Improvisation</a> by Ron Sword<br />
<a class="wiki_link_ext" href="http://www.ronsword.com/sounds/ronsword_miracle528_part3.mp3" rel="nofollow" target="_blank">16-tet Magic Drone</a> by Ron Sword</body></html>