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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 = 11-EDO
: This revision was by author [[User:guest|guest]] and made on <tt>2007-05-17 16:20:26 UTC</tt>.<br>
| en = 11edo
: The original revision id was <tt>4466579</tt>.<br>
| es =
: The revision comment was: <tt></tt><br>
| ja = 11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">=11 tone equal temperament=
{{ED intro}}
== Theory ==
Compared to 12edo, the intervals of 11edo are stretched:


**Compositions**
* The "minor second" at 109.09 cents, functions melodically very much like the 100-cent minor second of 12edo.
* The "major second" at 218.18 cents, works in a similar fashion to the 200-cent major second of 12edo, but as a major ninth, it may sound less [[concordant]]. Its inversion, at 981.82 cents, can function as a "bluesy" seventh relative to 12edo's 1000-cent interval, although it is still about 13 cents away from [[7/4]].
* The "minor third" at 327.27 cents, is rather sharp and encroaching upon "[[neutral]] third".
* The "major third" at 436.36 cents, is quite sharp, and closer to the [[supermajor]] third of frequency ratio [[9/7]] than the simpler third of 5/4.
* The "perfect fourth" at 545.45 cents, does not sound like a perfect fourth at all, and passes more easily as the [[11/8]] superfourth than the simpler perfect fourth of 4/3.
{{Harmonics in equal|11}}


[[http://zebox.com/cgi-bin/artists/dl.cgi?danstearns_2_-_11edo.m3u+qp+m4|Over the Rivers]] by [[http://www.myspace.com/danstearns|Dan Stearns]]</pre></div>
11edo does not approximate many small prime harmonics well, only providing good approximations to 7/4 and 11/8. However, 11edo can be treated as a subset of 22edo, and take 22edo's [[6/5]], [[9/7]], and [[16/15]] via direct approximation.
<h4>Original HTML content:</h4>
 
<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;11edo&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="x11 tone equal temperament"&gt;&lt;/a&gt;&lt;!-- ws:end:WikiTextHeadingRule:0 --&gt;11 tone equal temperament&lt;/h1&gt;
11edo provides the same tuning on the [[k*N subgroups|2*11 subgroup]] 2.9.15.7.11.17 as does 22edo, and on this subgroup it [[tempering out|tempers out]] the same [[comma]]s as 22. Also on this subgroup there is an approximation of the 8:9:11:14:15:16:17 [[chord]] and its subchords. Though the error is rather large, this does provide 11 with a variety of chords approximating [[JI]] chords.
&lt;br /&gt;
 
&lt;strong&gt;Compositions&lt;/strong&gt;&lt;br /&gt;
11edo has a good approximation of [[9/7]], hence one natural approach to harmony in 11edo is to generate chords from stacks of this interval. Incidentally, correcting the tuning of 9/7 to just tuning and stacking this interval has the beneficial side effect of also improving the tuning of the 17th harmonic to almost exactly just intonation, with an error of only [[5832/5831|0.3 cents]]. It may therefore be worth considering this JI tuning as an alternative to 11edo.
&lt;br /&gt;
 
&lt;a class="wiki_link_ext" href="http://zebox.com/cgi-bin/artists/dl.cgi?danstearns_2_-_11edo.m3u+qp+m4" rel="nofollow"&gt;Over the Rivers&lt;/a&gt; by &lt;a class="wiki_link_ext" href="http://www.myspace.com/danstearns" rel="nofollow"&gt;Dan Stearns&lt;/a&gt;&lt;/body&gt;&lt;/html&gt;</pre></div>
Being less than twelve, 11edo maps easily to the standard keyboard. The suggested mapping disregards the Ab/G# key, leaving [[Orgone]][7] on the whites. The superfluous Ab can be made a note of [[22edo]], a tuning known as "[[elevenplus]]".
 
[[File:0-8-16-20 chord.wav|thumb|A 0–8–16–20 chord in 11edo illustrating harmony generated from stacking 9/7 intervals.]]
 
== Intervals and Notation ==
=== Ups and downs notation ===
11edo can be notated using ups and downs. Conventional notation, including the staff, note names, relative notation, etc. can be used in two ways. The first preserves the ''melodic'' meaning of sharp/flat, major/minor and aug/dim, in that sharp is higher pitched than flat, and major/aug is wider than minor/dim. The disadvantage to this approach is that conventional interval arithmetic no longer works. e.g. M2 + M2 isn't M3, and D + M2 isn't E. Chord names are different because C - E - G isn't P1 - M3 - P5.
 
The second approach preserves the ''harmonic'' meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 11edo "on the fly".
 
The 11edo solfege in the table is derived from [[22edo Solfege|22edo solfege]].
 
{| class="wikitable center-all right-2 left-4"
! #
! [[Cent]]s
! Solfege
! Approximate Ratios*
! colspan="2" | [[Ups and downs notation|Up/down notation]] <br> with major wider <br> than minor
! colspan="2" | Up/down notation <br> with major narrower <br> than minor
! [[Smitonic]]<br>(3rd-gen)<br>notation
! [[Tútim Dennsuul Wafiil|TDW]] <br> [[Machinoid|Machine]] <br> notation
! Pseudo-Diatonic Category
!Audio
|-
| 0
| 0.00
| '''do'''
| 1/1
| P1
| A
| P1
| A
| A
| Q, P#
| Unison
|[[File:0-0 unison.mp3|frameless]]
|-
| 1
| 109.09
| '''ra'''
| [[15/14]], [[16/15]], [[17/16]], [[18/17]]
| ^1, m2
| ^A, B
| ^1, M2
| ^A, B
| A#, Bb
| Q#, Rb
| Minor second
|[[File:0-109,09 minor second (11-EDO).mp3|frameless]]
|-
| 2
| 218.18
| '''re'''
| [[8/7]], [[9/8]], [[17/15]]
| ~2, m3
| ^B, Cb
| ~2, M3
| ^B, C#
| B
| R
| Major second
|[[File:0-218,18 major second (11-EDO).mp3|frameless]]
|-
| 3
| 327.27
| '''me'''
| [[6/5]], [[11/9]], [[17/14]]
| M2, ~3
| B#, vC
| m2, ~3
| Bb, vC
| C
| R#, Sb
| Minor third
|[[File:0-327,27 minor third (11-EDO).mp3|frameless]]
|-
| 4
| 436.36
| '''mo'''
| [[9/7]], [[14/11]], [[22/17]]
| M3, v4
| C, vD
| m3, v4
| C, vD
| C#, Db
| S
| Major third/Minor fourth
|[[File:0-436,36 major third (11-EDO).mp3|frameless]]
|-
| 5
| 545.45
| '''fu'''
| [[11/8]], [[15/11]]
| P4, v5
| D, vE
| P4, v5
| D, vE
| D
| S#, Tb
| Major fourth
|[[File:0-545,45 major fourth (11-EDO).mp3|frameless]]
|-
| 6
| 654.55
| '''su'''
| [[16/11]], [[22/15]]
| ^4, P5
| ^D, E
| ^4, P5
| ^D, E
| D#, Eb
| T
| Minor fifth
|[[File:0-654,55 minor fifth (11-EDO).mp3|frameless]]
|-
| 7
| 763.64
| '''lo'''
| [[14/9]], [[11/7]], [[17/11]]
| ^5, m6
| ^E, Fb
| ^5, M6
| ^E, F#
| E
| T#, Ub
| Major fifth/Minor sixth
|[[File:0-763,64 minor sixth (11-EDO).mp3|frameless]]
|-
| 8
| 872.73
| '''la'''
| [[5/3]], [[18/11]], [[28/17]]
| ~6, m7
| vF, Gb
| ~6, M7
| vF, G#
| F
| U
| Major sixth
|[[File:0-872,73 major sixth (11-EDO).mp3|frameless]]
|-
| 9
| 981.82
| '''ta'''
| [[7/4]], [[16/9]], [[30/17]]
| M6, ~7
| F, vG
| m6, ~7
| F, vG
| F#, Gb
| U#, Pb
| Minor seventh
|[[File:0-981,82 minor seventh (11-EDO).mp3|frameless]]
|-
| 10
| 1090.91
| '''ti'''
| [[15/8]], [[17/9]], [[28/15]], [[32/17]]
| M7, v8
| G, vAv
| m7, v8
| G, vAv
| G
| P, Qb
| Major seventh
|[[File:0-1090,91 major seventh (11-EDO).mp3|frameless]]
|-
| 11
| 1200.00
| '''do'''
| 2/1
| P8
| A
| P8
| A
| A
| Q, P#
| Octave
|[[File:0-1200 octave.mp3|frameless]]
|}
<nowiki>* in 2.7.9.11.15.17 subgroup</nowiki>
 
The ups and downs notations above are heptatonic systems generated by 5ths (~3/2). Alternative notations include pentatonic 5th-generated, octatonic 5th-generated, nonatonic 5th-generated, heptatonic 3rd-generated, and hexatonic 2nd-generated.
 
'''<u>Pentatonic 5th-generated:</u>''' '''D * * E G * * A C * * D'''  ([[Sensoid]] generator = wide 3/2 = 7\11 = perfect 5thoid)
 
D - ^D/Eb - D#/vE - E - G - ^G/Ab - G#/vA - A - C - ^C/Db - C#/vD - D
 
P1 - ^1/ms3 - A1/~s3 - Ms3 - P4d - ^4d/d5d - A4d/v5d - P5d - ms7 - ~s7/d8d - Ms7/v8d - P8d (s = sub-, d = -oid)
 
pentatonic genchain of fifths: ...Cb - Gb - Db - Ab - Eb - C - G - D - A - E - C# - G# - D# - A# - E#...
 
pentatonic genchain of fifths: ...ds3 - ds7 - d4d - d8d - d5d - ms3 - ms7 - P4d - P1 - P5d - Ms3 - Ms7 - A4d - A1 - A5d - As3 - As7... (s = sub-, d = -oid)
 
'''<u>Octatonic 5th-generated:</u>''' '''A B * C D E * F G * H A''' ([[Sensoid]] generator = wide 3/2 = 7\11 = perfect 6th)
 
A - B - B#/Cb - C - D - E - E#/Fb - F - G - G#/Hb - H - A
 
P1 - m2 - M2/m3 - M3 - P4 - m5 - M5 - P6 - m7 - M7/m8 - M8 - P9
 
octatonic genchain of sixths: ...Db - Ab - Fb - Cb - Hb - E - B - G - D - A - F - C - H - E# - B# - G# - D# - A#...
 
octatonic genchain of sixths: ...d7 - d4 - d9 - d6 - m3 - m8 - m5 - m2 - m7 - P4 - P1 - P6 - M3 - M8 - M5 - M2 - M7 - A4 - A1 - A6 - A3...
 
'''<u>Nonatonic 5th-generated:</u> A B * C D E F G * H J A''' ([[Joanatonic]] generator = narrow 3/2 = 6\11 = perfect 6th)
 
A - B - B#/Cb - C - D - E - F - G - G#/Hb - H - J - A
 
P1 - m2 - M2/m3 - M3/m4 - M4 - P5 - P6 - m7 - M7/m8 - M8/m9 - M9 - P10
 
nonotonic genchain of sixths: ...E# - A# - F# - B# - G# - C - H - D - J - E - A - F - B - G - Cb - Hb - Db - Jb - Eb...
 
nonotonic genchain of sixths: ...M2 - M7 - M3 - M8 - M4 - M9 - P5 - P1 - P6 - m2 - m7 - m3 - m8 - m4 - m9...
 
'''<u>Heptatonic 3rd-generated:</u> D * E F * G A * B C * D''' ([[Smitonic]] generator = 3\11 = perfect 3rd)
 
D - D#/Eb - E - F - F#/Gb - G - A - A#/Bb - B - C - C#/Db - D
 
P1 - m2 - M2 - P3 - m4 - M4 - m5 - M5 - P6 - m7 - M7 - P8
 
genchain of thirds: ...E# - G# - B# - D# - F# - A# - C# - E - G - B - D - F - A - C - Eb - Gb - Bb - Db - Fb - Ab - Cb...
 
genchain of thirds: ...M5 - M7 - M2 - M4 - P6 - P1 - P3 - m5 - m7 - m2 - m4 - d6...
 
'''<u>Hexatonic 2nd-generated:</u> R * S * T * U * P Q''' '''* R''' ([[Machinoid]] generator = 2\11 = perfect 2nd)
 
R - R#/Sb - S - S#/Tb - T - T#/Ub - U - U#/Pb - P - Q - Q#/Rb - R
 
P1 - A1/d2 - P2 - m3 - M3 - m4 - M4 - m5 - M5 - P6 - A6/d7 - P7
 
genchain of seconds: ... - Qb - Rb - Sb - Tb - Ub - Pb - Q - R - S - T - U - P - Q# - R# - S# - T# - U# - P#...
 
genchain of seconds: ... - m3 - m4 - m5 - P6 - P1 - P2 - M3 - M4 - M5 - A6 - A1...
 
===Sagittal notation===
This notation is a subset of the notations for EDOs [[22edo#Sagittal notation|22]], [[44edo#Sagittal notation|44]], and [[66edo#Sagittal notation|66]].
====Evo flavor====
 
<imagemap>
File:11-EDO_Evo_Sagittal.svg
desc none
rect 80 0 300 50 [[Sagittal_notation]]
rect 400 0 560 80 [https://sagittal.org#periodic-table Periodic table of EDOs with sagittal notation]
rect 20 80 400 106 [[22-EDO#Sagittal_notation | 22-EDO notation]]
default [[File:11-EDO_Evo_Sagittal.svg]]
</imagemap>
 
====Revo flavor====
 
<imagemap>
File:11-EDO_Revo_Sagittal.svg
desc none
rect 80 0 300 50 [[Sagittal_notation]]
rect 368 0 528 80 [https://sagittal.org#periodic-table Periodic table of EDOs with sagittal notation]
rect 20 80 368 106 [[22-EDO#Sagittal_notation | 22-EDO notation]]
default [[File:11-EDO_Revo_Sagittal.svg]]
</imagemap>
 
== Regular temperament properties ==
=== Uniform maps ===
{{Uniform map|edo=11}}
 
=== Commas ===
11et [[tempering out|tempers out]] the following [[comma]]s. This assumes val {{val| 11 17 26 31 38 41 }}.
 
{| class="commatable wikitable center-1 center-2 right-4 center-5"
|-
! [[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(s)
|-
| 3
| [[177147/131072]]
| {{Monzo| -17 11 }}
| 521.50
| sasawa 3rd
| Pythagorean augmented third
|-
| 5
| [[135/128]]
| {{Monzo| -7 3 1 }}
| 92.18
| Layobi
| Major chroma
|-
| 5
| [[144/125]]
| {{Monzo| 4 2 -3 }}
| 244.97
| Trigu
| University comma
|-
| 5
| [[34171875/33554432|(16 digits)]]
| {{Monzo| -25 7 6 }}
| 31.57
| Lala-tribiyo
| [[Ampersand comma]]
|-
| 5
| <abbr title="295578376007080078125/295147905179352825856">(42 digits)</abbr>
| {{Monzo| -68 18 17 }}
| 2.52
| Quinla-seyo
| [[Vavoom comma]]
|-
| 7
| <abbr title="854296875/843308032">(18 digits)</abbr>
| {{Monzo| -10 7 8 -7 }}
| 22.41
| Lasepru-aquadbiyo
| [[Blackjackisma]]
|-
| 7
| [[1029/1024]]
| {{Monzo| -10 1 0 3 }}
| 8.43
| Latrizo
| Gamelisma
|-
| 7
| [[225/224]]
| {{Monzo| -5 2 2 -1 }}
| 7.71
| Ruyoyo
| Marvel comma
|-
| 7
| [[16875/16807]]
| {{Monzo| 0 3 4 -5 }}
| 6.99
| Quinru-aquadyo
| Mirkwai comma
|-
| 7
| [[2401/2400]]
| {{Monzo| -5 -1 -2 4 }}
| 0.72
| Bizozogu
| Breedsma
|-
| 11
| [[121/120]]
| {{Monzo| -3 -1 -1 0 2 }}
| 14.37
| Lologu
| Biyatisma
|-
| 11
| [[65536/65219]]
| {{Monzo| 16 0 0 -2 -3 }}
| 8.39
| Satrilu-aruru
| Orgonisma
|}
 
== Approximation to JI ==
{| class="wikitable"
|-
! Harmonic
! 8
!
! 9
!
! 11
!
! 14
!
! 16
|-
! JI interval from 1/1
| 1/1 = 0 cents
|
| 9/8 = 204
|
| 11/8 = 551
|
| 7/4 = 969
|
| 2/1 = 1200
|-
! Nearest 11edo interval
| 0\11 = 0¢
|
| 2\11 = 218¢
|
| 5\11 = 545
|
| 9\11 = 982
|
| 11\11 = 1200
|-
! Difference
| 0
|
| +14¢
|
| -6¢
|
| +13¢
|
| 0¢
|-
! JI interval between
|
| 9:8 = 204¢
|
| 11:9 = 347
|
| 14:11 = 418
|
| 8:7 = 231
|
|-
! Nearest 11edo interval
|
| 2\11 = 218¢
|
| 3\11 = 327
|
| 4\11 = 436
|
| 2\11 = 218
|
|-
! Difference
|
| +14¢
|
| -20¢
|
| +18¢
|
| -13¢
|
|}
 
11edo also may be considered a 2.7.9.11.15.17 subgroup temperament. See diagram:
 
[[File:11edo_approx_2-7-9-11-15-17_2ndsave.png|alt=11edo_approx_2-7-9-11-15-17_2ndsave.png|11edo_approx_2-7-9-11-15-17_2ndsave.png]]
 
== Octave stretch or compression ==
11edo has about equally bad sharp and flat mappings of [[prime]]s 3 and 5. The 7 and 13 are quite sharp, but the 11 is a little flat. To use it as a 2.7.11.13 tuning, slight [[octave shrinking]] is advisable. Examples of slightly compressed versions of 11edo include (least to most compressed) [[ed6|28ed6]], [[ed12|39ed12]], [[zpi|30zpi]], [[equal tuning|35ed9]] and [[ed7|31ed7]].
 
To use its primes 3 or 5, extreme octave shrinking can be used, at the cost of making the octaves sound significantly weaker. [[equal tuning|37ed10]] is a very compressed version of 11edo.
 
== Scales ==
{{Main|11edo modes}}
 
=== MOS scales ===
{{Main|List of 11edo MOS scales}}
Although 11edo has one fewer interval in the octave than 12edo, in terms of [[MOS scale|moment-of-symmetry scales]], it offers a great deal more variety. This is because 11 is a prime number, while 12 is composite. Cycles of 2\11 (two degrees of 11edo), 3\11, 4\11 and 5\11 produce scales which do not repeat at the octave until all 11 intervals have been included.
 
== Instruments ==
'''11edo ukulele'''
 
[[File:11-edo-ukulele.JPG|alt=11-edo-ukulele.JPG|404x304px|11-edo-ukulele.JPG]]
 
'''Ensembles'''
 
In February 2011, [http://oddmusicuc.wordpress.com/ Oddmusic U-C], as part of its Microtonal Design Seminar, generated a 7-piece ensemble for playing music in 11edo. Instrumentation: autotuner, cümbüş, electronic keyboard, kalimba, retrofretted guitar, tuned bottles, udderbot. Recordings forthcoming.
 
'''Lumatone'''
 
[[Lumatone mapping for 11edo|Lumatone mappings for 11edo]] are available.
 
== Introductory Materials ==
* [[File:11edo_1MC.mp3|270px]] 11edo example composition by [[User:Inthar|Inthar]] (first half's in [[4L 3s]], second half is in [[3L 5s]])
 
== Music ==
{{Catrel|11edo tracks}}
 
See [[11edo/Music]].
 
== Videos ==
* The Stuffed Ones: ''[https://www.youtube.com/watch?v=NU0VvGRelUQ&feature=related Goopy]'', ''[https://www.youtube.com/watch?v=4D9wDl_oxHE&feature=related Ziggy]'', ''[https://www.youtube.com/watch?v=53IiHdXfJwI&feature=related Ellie]'', ''[https://www.youtube.com/watch?v=4sZqpRcB-lk&feature=related Towelbear]'' by [https://www.youtube.com/user/zipzappoozoo zipzappoozoo]
 
* [https://www.youtube.com/watch?v=AhPjsCoMy-Q 11-equal Improvisation]'', [[Mike Battaglia FAQ|Mike Battaglia]] - youtube
* [https://www.youtube.com/watch?v=4WlTPfRDPCY untitled1], computer
 
== See also ==
* [[11edo Zine]] — There is an 11edo Zine! As far as we know, 11edo is the first xenharmonic tuning system to have its own zine.
 
== Notes ==
<references group=note/>
 
[[Category:Listen]]
{{Todo|add rank 2 temperaments table}}
Retrieved from "https://en.xen.wiki/w/11edo"