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The '''94 equal temperament''', often abbreviated '''94-tET''', '''94-[[EDO]]''', or '''94-ET''', results from dividing the [[octave]] into 94 equally-sized steps, where each step is 12.766 [[cent|cents]].
{{Infobox ET}}
{{ED intro}}


== Theory ==
== Theory ==
94edo is a remarkable all-around utility temperament, good from low [[prime limit]] to very high prime limit situations. It is the first equal temperament to be [[consistent]] through the [[23-limit]], and no other equal temperament is so consistent until [[282edo|282]] and [[311edo|311]] make their appearance.
94edo is a remarkable all-around utility tuning system, good from low [[prime limit]] to very high prime limit situations. It is the first edo to be [[consistent]] through the [[23-odd-limit]], and no other edo is so consistent until [[282edo|282]] and [[311edo|311]] make their appearance.


The list of 23-limit commas it tempers out is huge, but it's worth noting that it tempers out [[32805/32768]] and is thus a [[schismatic]] system, that it tempers out [[225/224]] and [[385/384]] and so is a [[marvel]] system, and that it also tempers out [[3125/3087]], [[4000/3969]], [[5120/5103]] and [[540/539]]. It provides the [[optimal patent val]] for the rank five temperament tempering out [[275/273]], and for a number of other temperaments, such as [[isis]].
Its step size is close to that of [[144/143]], which is consistently represented in this tuning system.


:''See also: [[Table of 94edo intervals]]''
=== As a tuning of other temperaments ===
94edo can also be thought of as the "sum" of [[41edo]] and [[53edo]] {{nowrap|(41 + 53 {{=}} 94)}}, both of which are not only known for their approximation of [[Pythagorean tuning]], but also support a variety of [[Schismatic family|schismatic temperament]] known as [[Schismatic family#Cassandra|cassandra]] (which is itself a variety of [[Schismatic family#Garibaldi|garibaldi]]), tempering out [[32805/32768]], [[225/224]], and [[385/384]]. Therefore, 94edo's fifth is the [[mediant]] of these two edos' fifths; it is slightly sharp of just and less accurate than 53edo's fifth, but more accurate than 41edo's, and acts as a generator for a highly optimized and high-prime-limit form of cassandra. Few, if any, edos that support schismatic by [[Val|patent val]] have at least as high of a consistency limit as 94edo while also having a fifth that can stack to reach any interval in it.


== Just approximation ==
The list of 23-limit commas it tempers out is huge, and in lower prime limits, it also tempers out [[3125/3087]], [[4000/3969]], [[5120/5103]] and [[540/539]]. It provides the [[optimal patent val]] for gassormic, the rank-5 temperament tempering out [[275/273]] (despite one edostep being very close in size to this comma), and for a number of other temperaments, such as [[isis]].
=== Selected just intervals ===


{{Primes in edo|94|columns=11}}
94edo is an excellent edo for [[Carlos Beta]] scale, since the difference between 1 step of Carlos Beta and 5 steps of 94edo is only 0.00314534 cents.


=== Temperament measures ===
=== Prime harmonics ===
The following table shows [[TE temperament measures]] (RMS normalized by the rank) of 94et.  
{{Harmonics in equal|94|columns=11}}
{| class="wikitable center-all"
 
! colspan="2" |
=== Subsets and supersets ===
! 3-limit
Since 94 factors into primes as {{nowrap| 2 × 47 }}, 94edo contains [[2edo]] and [[47edo]] as subset edos. It can be thought of as two sets of 47edo offset by one step of 94edo. It inherits from 47edo's good approximations of primes 5, 7, 13, and 17, while dramatically improving on prime 3, as well as primes 11, 19, and 23 to a lesser degree.
! 5-limit
 
! 7-limit
== Intervals ==
! 11-limit
{{See also | Table of 94edo intervals }}
 
Assuming [[23-limit]] [[patent val]] {{val| 94 149 218 264 325 348 384 399 425 }}, here is a table of intervals as approximated by [[94edo]] steps, and their corresponding 13-limit well-ordered extended diatonic interval names. 'S/s' indicates alteration by the septimal comma, [[64/63]]; 'K/k' indicates alteration by the syntonic comma, [[81/80]]; 'U/u' by the undecimal quartertone, [[33/32]]; 'L/l' by pentacircle comma, [[896/891]]; 'O/o' by [[45/44]]; 'R/r' by the rastma, [[243/242]]; 'T/t' by the tridecimal quartertone, [[1053/1024]]; and finally, 'H/h', by [[40/39]]. Capital letters alter downward, lowercase alter upwards. Important 13-limit intervals approximated that are not associated with the extended diatonic interval names are added in brackets. Multiple alterations by 'K' down from augmented and major, or up from diminished and minor intervals are also added in brackets, along with their associated (5-limit) intervals.
 
{| class="wikitable center-5"
|-
! Step
! Cents
! 13-limit
! 13-limit
! 17-limit
! 19-limit
! 23-limit
! 23-limit
! 29-limit
![[Ups and downs notation|Ups and downs]]
! 31-limit
! Short-form [[SKULO interval names#WOFED interval names|WOFED]]
! Long-form WOFED
! Diatonic
|-
|-
! colspan="2" |Octave stretch (¢)
|0
| -0.054
|0
| +0.442
|1/1
| +0.208
|
| +0.304
|{{UDnote|step=0}}
| +0.162
|
| +0.238
|
| +0.323
|
| +0.354
| +0.227
| +0.134
|-
|-
! rowspan="2" |Error
| 1
! [[TE error|absolute]] (¢)
| 12.766
| 0.054
| 896/891, 243/242, (3125/3072, 245/243, 100/99, 99/98)
| 0.704
| 85/84
| 0.732
|{{UDnote|step=1}}
| 0.683
| L1, R1
| 0.699
| large unison, rastma
| 0.674
|
| 0.669
| 0.637
| 0.715
| 0.741
|-
|-
! [[TE simple badness|relative]] (%)
| 2
| 0.43
| 25.532
| 5.52
| 81/80, 64/63, (50/49)
| 5.74
|
| 5.35
|{{UDnote|step=2}}
| 5.48
| K1, S1
| 5.28
| komma, super unison
| 5.24
|
| 4.99
| 5.60
| 5.81
|}
94et has a lower relative error than any previous ETs in the 23-limit. The next ET that does better in this subgroup is 193.
 
== Rank two temperaments ==
 
{| class="wikitable center-all right-3 left-5"
! Periods<br>per octave
! Generator
! Cents
! Associated<br>ratio
! Temperament
|-
|-
| 1
| 3
| 3\94
| 38.298
| 38.298
| 49/48
| 45/44, 40/39, (250/243, 49/48)
| [[Slender]]
| 46/45
|{{UDnote|step=3}}
| O1, H1
| on unison, hyper unison
|
|-
| 4
| 51.064
| 33/32, (128/125, 36/35, 35/34, 34/33)
|
|{{UDnote|step=4}}
| U1, T1, hm2
| uber unison, tall unison, hypo minor second
|
|-
|-
| 1
| 5
| 5\94
| 63.830
| 63.830
| 25/24
| 28/27, 729/704, 27/26, (25/24)
| [[Sycamore]] / [[betic]]
|
|{{UDnote|step=5}}
| sm2, uA1, tA1, (kkA1)
| sub minor second, unter augmented unison, tiny augmented unison, (classic augmented unison)
| dd3
|-
| 6
| 76.596
| 22/21, (648/625, 26/25)
| 23/22, 24/23
|{{UDnote|step=6}}
| lm2, oA1
| little minor second, off augmented unison
|
|-
| 7
| 89.362
| 256/243, 135/128, (21/20)
| 19/18, 20/19
|{{UDnote|step=7}}
| m2, kA1
| minor second, komma-down augmented unison
| m2
|-
| 8
| 102.128
| 128/121, (35/33)
| 17/16, 18/17
|{{UDnote|step=8}}
| Rm2, rA1
| rastmic minor second, rastmic augmented unison
|
|-
| 9
| 114.894
| 16/15, (15/14)
|
|{{UDnote|step=9}}
| Km2, A1
| classic minor second, augmented unison
| A1
|-
| 10
| 127.660
| 320/297, 189/176, (14/13)
|
|{{UDnote|step=10}}
| Om2, LA1
| oceanic minor second, large augmented unison
|
|-
|-
| 1
| 11
| 11\94
| 140.426
| 140.426
| 243/224 <br> 13/12
| 88/81, 13/12, 243/224, (27/25)
| [[Tsaharuk]] <br> [[Quanic]]
| 25/23, 38/35
|{{UDnote|step=11}}
| n2, Tm2, SA1, (KKm2)
| lesser neutral second, tall minor second, super augmented unison, (2-komma-up minor second)
|
|-
|-
| 1
| 12
| 19\94
| 153.191
| 12/11, (35/32)
| 23/21
|{{UDnote|step=12}}
| N2, tM2, HA1
| greater netral second, tiny major second, hyper augmented unison
| ddd4
|-
| 13
| 165.957
| 11/10
|
|{{UDnote|step=13}}
| oM2
| off major second
|
|-
| 14
| 178.723
| 10/9
| 21/19
|{{UDnote|step=14}}
| kM2
| komma-down major second
| d3
|-
| 15
| 191.489
| 121/108, (49/44, 39/35)
| 19/17
|{{UDnote|step=15}}
| rM2
| rastmic major second
|
|-
| 16
| 204.255
| 9/8
|
|{{UDnote|step=16}}
| M2
| major second
| M2
|-
| 17
| 217.021
| 112/99, (25/22)
| 17/15, 26/23
|{{UDnote|step=17}}
| LM2
| large major second
|
|-
| 18
| 229.787
| 8/7
|
|{{UDnote|step=18}}
| SM2
| super major second
| AA1
|-
| 19
| 242.553
| 242.553
| 147/128
| 15/13
| [[Septiquarter]]
| 23/20, 38/33
|{{UDnote|step=19}}
| HM2
| hyper major second
|
|-
| 20
| 255.319
| 52/45
| 22/19
|{{UDnote|step=20}}
| hm3
| hypo minor third
|
|-
| 21
| 268.085
| 7/6, (75/64)
|
|{{UDnote|step=21}}
| sm3, (kkA2)
| sub minor third, (classic augmented second)
| dd4
|-
| 22
| 280.851
| 33/28
| 20/17, 27/23
|{{UDnote|step=22}}
| lm3
| little minor third
|
|-
| 23
| 293.617
| 32/27, (25/21, 13/11)
| 19/16
|{{UDnote|step=23}}
| m3
| minor third
| m3
|-
| 24
| 306.383
| 144/121, (81/70)
|
|{{UDnote|step=24}}
| Rm3
| rastmic minor third
|
|-
| 25
| 319.149
| 6/5
|
|{{UDnote|step=25}}
| Km3
| classic minor third
| A2
|-
| 26
| 331.915
| 40/33
| 17/14, 23/19
|{{UDnote|step=26}}
| Om3
| on minor third
|
|-
|-
| 1
| 27
| 39\94
| 344.681
| 497.872
| 11/9, 39/32, (243/200, 60/49)
| 4/3
| 28/23
| [[Schismatic]] / [[Garibaldi]]
|{{UDnote|step=27}}
| n3, Tm3
| lesser neutral third, tall minor third
| AAA1
|-
|-
| 2
| 28
| 2\94
| 357.447
| 25.532
| 27/22, 16/13, (100/81,49/40)
| 64/63
|
| [[Ketchup]]
|{{UDnote|step=28}}
| N3, tM3
| greater neutral third, tiny major third
| ddd5
|-
|-
| 2
| 29
| 11\94
| 370.213
| 140.426
| 99/80, (26/21)
| 27/25
| 21/17
| [[Fifive]]
|{{UDnote|step=29}}
| oM3
| off major third
|
|-
|-
| 2
| 30
| 30\94
| 382.979
| 382.979
| 5/4
| 5/4
| [[Wizard]] / [[gizzard]]
|
|{{UDnote|step=30}}
| kM3
| classic major third
| d4
|-
| 31
| 395.745
| 121/96, (34/27)
|
|{{UDnote|step=31}}
| rM3
| rastmic major third
|
|-
| 32
| 408.511
| 81/64, (33/26)
| 19/15, 24/19
|{{UDnote|step=32}}
| M3
| major third
| M3
|-
| 33
| 421.277
| 14/11
| 23/18
|{{UDnote|step=33}}
| LM3
| large major third
|
|-
|-
| 2
| 34
| 34\94
| 434.043
| 434.043
| 9/7
| 9/7, (32/25)
| [[Pogo]] / [[supers]]
|
|{{UDnote|step=34}}
| SM3, (KKd4)
| super major third, (classic diminished fourth)
| AA2
|-
| 35
| 446.809
| 135/104, (35/27)
| 22/17
|{{UDnote|step=35}}
| HM3
| hyper major third
| ddd6
|-
| 36
| 459.574
| 13/10
| 17/13, 30/23
|{{UDnote|step=36}}
| h4
| hypo fourth
|
|-
| 37
| 472.340
| 21/16
| 25/19, 46/35
|{{UDnote|step=37}}
| s4
| sub fourth
| dd5
|-
| 38
| 485.106
| 297/224
|
|{{UDnote|step=38}}
| l4
| little fourth
|
|-
| 39
| 497.872
| 4/3
|
|{{UDnote|step=39}}
| P4
| perfect fourth
| P4
|-
| 40
| 510.638
| 162/121, (35/26)
|
|{{UDnote|step=40}}
| R4
| rastmic fourth
|
|-
| 41
| 523.404
| 27/20
| 19/14, 23/17
|{{UDnote|step=41}}
| K4
| komma-up fourth
| A3
|-
| 42
| 536.170
| 15/11
| 34/25
|{{UDnote|step=42}}
| O4
| on fourth
|
|-
|-
| 2
| 43
| 43\94
| 548.936
| 548.936
| 11/8
| 11/8
| [[Kleischismic]]
| 26/19
|}
|{{UDnote|step=43}}
 
| U4, T4
Below are some 23-limit temperaments supported by 94et. It might be noted that 94, a very good tuning for [[garibaldi temperament]], shows us how to extend it to the 23-limit.
| uber/undecimal fourth, tall fourth
 
| AAA2
* 46&amp;94 &lt;&lt;8 30 -18 -4 -28 8 -24 2 ... ||
* 68&amp;94 &lt;&lt;20 28 2 -10 24 20 34 52 ... ||
* 53&amp;94 &lt;&lt;1 -8 -14 23 20 -46 -3 -35 ... || (one garibaldi)
* 41&amp;94 &lt;&lt;1 -8 -14 23 20 48 -3 -35 ... || (another garibaldi, only differing in the mappings of 17 and 23)
* 135&amp;94 &lt;&lt;1 -8 -14 23 20 48 -3 59 ... || (another garibaldi)
* 130&amp;94 &lt;&lt;6 -48 10 -50 26 6 -18 -22 ... || (a pogo extension)
* 58&amp;94 &lt;&lt;6 46 10 44 26 6 -18 -22 ... || (a supers extension)
* 50&amp;94 &lt;&lt;24 -4 40 -12 10 24 22 6 ... ||
* 72&amp;94 &lt;&lt;12 -2 20 -6 52 12 -36 -44 ... || (a gizzard extension)
* 80&amp;94 &lt;&lt;18 44 30 38 -16 18 40 28 ... ||
* 94 solo &lt;&lt;12 -2 20 -6 -42 12 -36 -44 ... || (a rank one temperament!)
 
Temperaments for which 94 is a [[MOS]]:
 
* 311&amp;94 &lt;&lt;3 70 -42 69 -34 50 85 83...||
* 422&amp;94 &lt;&lt;8 124 -18 90 -28 102 164 96 ... ||
 
== Scales ==
 
* [[garibaldi12]]
* [[garibaldi17]]
 
 
Since 94edo has a step of 12.766 cents, it also allows one to use its MOS scales as circulating temperaments.
{| class="wikitable"
|+Circulating temperaments in 94edo
!Tones
!Pattern
!L:s
|-
|-
|5
| 44
|[[4L 1s]]
| 561.702
|19:18
| 18/13, (25/18)
|
|{{UDnote|step=44}}
| tA4, uA4, (kkA4)
| tiny augmented fourth, unter augmented fourth, (classic augmented fourth)
| dd6
|-
|-
|6
| 45
|[[4L 2s]]
| 574.468
|16:15
| 88/63
| 32/23, 46/33
|{{UDnote|step=45}}
| ld5, oA4
| little diminished fifth, off augmented fourth
|
|-
|-
|7
| 46
|[[3L 4s]]
| 587.234
|14:13
| 45/32, (7/5)
| 38/27
|{{UDnote|step=46}}
| kA4
| komma-down augmented fourth
| d5
|-
|-
|8
| 47
|[[6L 2s]]
| 600.000
|12:11
| 363/256, 512/363, (99/70)
| 17/12, 24/17
|{{UDnote|step=47}}
| rA4, Rd5
| rastmic augmented fourth, rastmic diminished fifth
|
|-
|-
|9
| 48
|[[4L 5s]]
| 612.766
|11:10
| 64/45, (10/7)
| 27/19
|{{UDnote|step=48}}
| Kd5
| komma-up diminished fifth
| A4
|-
|-
|10
| 49
|[[4L 6s]]
| 625.532
|10:9
| 63/44
| 23/16, 33/23
|{{UDnote|step=49}}
| LA4, Od5
| large augmented fourth, off diminished fifth
|
|-
|-
|11
| 50
|[[6L 5s]]
| 638.298
|9:8
| 13/9, (36/25)
|
|{{UDnote|step=50}}
| Td5, Ud5, (KKd5)
| tall diminished fifth, uber diminished fifth, (classic diminished fifth)
| AA3
|-
|-
|12
| 51
|[[10L 2s]]
| 651.064
| rowspan="2" |8:7
| 16/11
| 19/13
|{{UDnote|step=51}}
| u5, t5
| unter/undecimal fifth, tiny fifth
| ddd7
|-
|-
|13
| 52
|[[3L 10s]]
| 663.830
| 22/15
| 25/17
|{{UDnote|step=52}}
| o5
| off fifth
|
|-
|-
|14
| 53
|[[10L 4s]]
| 676.596
| rowspan="2" |7:6
| 40/27
| 28/19, 34/23
|{{UDnote|step=53}}
| k5
| komma-down fifth
| d6
|-
|-
|15
| 54
|[[4L 11s]]
| 689.362
| 121/81, (52/35)
|
|{{UDnote|step=54}}
| r5
| rastmic fifth
|
|-
|-
|16
| 55
|14L 2s
| 702.128
| rowspan="3" |6:5
| 3/2
|
|{{UDnote|step=55}}
| P5
| perfect fifth
| P5
|-
|-
|17
| 56
|[[9L 8s]]
| 714.894
| 448/297
|
|{{UDnote|step=56}}
| L5
| large fifth
|
|-
|-
|18
| 57
|4L 14s
| 727.660
| 32/21
| 38/25, 35/23
|{{UDnote|step=57}}
| S5
| super fifth
| AA4
|-
|-
|19
| 58
|18L 1s
| 740.426
| rowspan="5" |5:4
| 20/13
| 26/17, 23/15
|{{UDnote|step=58}}
| H5
| hyper fifth
|
|-
|-
|20
| 59
|14L 6s
| 753.191
| 208/135
| 17/11
|{{UDnote|step=59}}
| hm6
| hypo minor sixth
| AAA3
|-
|-
|21
| 60
|[[10L 11s]]
| 765.957
| 14/9, (25/16)
|
|{{UDnote|step=60}}
| sm6, (kkA5)
| sub minor sixth, (classic augmented fifth)
| dd7
|-
|-
|22
| 61
|6L 16s
| 778.723
| 11/7
| 36/23
|{{UDnote|step=61}}
| lm6
| little minor sixth
|
|-
|-
|23
| 62
|2L 21s
| 791.489
| 128/81
| 19/12, 30/19
|{{UDnote|step=62}}
| m6
| minor sixth
| m6
|-
|-
|24
| 63
|22L 2s
| 804.255
| rowspan="8" |4:3
| 192/121
| 27/17
|{{UDnote|step=63}}
| Rm6
| rastmic minor sixth
|
|-
|-
|25
| 64
|19L 6s
| 817.021
| 8/5
|
|{{UDnote|step=64}}
| Km6
| classic minor sixth
| A5
|-
|-
|26
| 65
|16L 10s
| 829.787
| 160/99, (21/13)
| 34/21
|{{UDnote|step=65}}
| Om6
| on minor sixth
|
|-
|-
|27
| 66
|13L 14s
| 842.553
| 44/27, 13/8, (81/50, 80/49)
|
|{{UDnote|step=66}}
| n6, Tm6
| less neutral sixth, tall minor sixth
| AAA4
|-
|-
|28
| 67
|10L 18s
| 855.319
| 18/11, 64/39, (400/243, 49/30)
| 23/14
|{{UDnote|step=67}}
| N6, tM6
| greater neutral sixth, tiny minor sixth
| ddd8
|-
|-
|29
| 68
|7L 22s
| 868.085
| 33/20
| 28/17, 38/23
|{{UDnote|step=68}}
| oM6
| off major sixth
|
|-
|-
|30
| 69
|4L 22s
| 880.851
| 5/3
|
|{{UDnote|step=69}}
| kM6
| classic major sixth
| d7
|-
|-
|31
| 70
|1L 30s
| 893.617
| 121/72
|
|{{UDnote|step=70}}
| rM6
| rastmic major sixth
|
|-
|-
|32
| 71
|30L 2s
| 906.383
| rowspan="15" |3:2
| 27/16, (42/35, 22/13)
| 32/19
|{{UDnote|step=71}}
| M6
| major sixth
| M6
|-
|-
|33
| 72
|28L 5s
| 919.149
| 56/33
| 17/10, 46/27
|{{UDnote|step=72}}
| LM6
| large major sixth
|
|-
|-
|34
| 73
|26L 8s
| 931.915
| 12/7, (128/75)
|
|{{UDnote|step=73}}
| SM6, (KKd7)
| super major sixth (classic diminished seventh)
| AA5
|-
|-
|35
| 74
|24L 11s
| 944.681
| 45/26
| 19/11
|{{UDnote|step=74}}
| HM6
| hyper major sixth
|
|-
|-
|36
| 75
|22L 14s
| 957.447
| 26/15
| 40/23, 33/19
|{{UDnote|step=75}}
| hm7
| hypo minor seventh
|
|-
|-
|37
| 76
|20L 17s
| 970.213
| 7/4
|
|{{UDnote|step=76}}
| sm7
| sub minor seventh
| dd8
|-
|-
|38
| 77
|18L 20s
| 982.979
| 99/56, (44/25)
| 30/17, 23/13
|{{UDnote|step=77}}
| lm7
| little minor seventh
|
|-
|-
|39
| 78
|16L 23s
| 995.745
| 16/9
|
|{{UDnote|step=78}}
| m7
| minor seventh
| m7
|-
|-
|40
| 79
|14L 26s
| 1008.511
| 216/121
| 34/19
|{{UDnote|step=79}}
| Rm7
| rastmic minor seventh
|
|-
|-
|41
| 80
|13L 28s
| 1021.277
| 9/5
| 38/21
|{{UDnote|step=80}}
| Km7
| classic minor seventh
| A6
|-
|-
|42
| 81
|10L 32s
| 1034.043
| 20/11
|
|{{UDnote|step=81}}
| Om7
| on minor seventh
|
|-
|-
|43
| 82
|8L 35s
| 1046.809
| 11/6, (64/35)
| 42/23
|{{UDnote|step=82}}
| n7, Tm7, hd8
| less neutral seventh, tall minor seventh, hypo diminished octave
| AAA5
|-
|-
|44
| 83
|6L 38s
| 1059.574
| 81/44, 24/13, (50/27)
| 46/25, 35/19
|{{UDnote|step=83}}
| N7, tM7, sd8, (kkM7)
| greater neutral seventh, tiny major seventh, sub diminished octave, (2-comma down major seventh)
|
|-
|-
|45
| 84
|4L 41s
| 1072.340
| 297/160, 144/91, (13/7)
|
|{{UDnote|step=84}}
| oM7, ld8
| off major seventh, little diminished octave
|
|-
|-
|46
| 85
|2L 44s
| 1085.106
| 15/8, (28/15)
|
|{{UDnote|step=85}}
| kM7, d8
| classic major seventh, diminished octave
| d8
|-
|-
|47
| 86
|[[47edo]]
| 1097.872
|equal
| 121/64
| 32/17, 17/9
|{{UDnote|step=86}}
| rM7, Rd8
| rastmic major seventh, rastmic diminished octave
|
|-
|-
|48
| 87
|46L 2s
| 1110.638
| rowspan="28" |2:1
| 243/128, 256/135, (40/21)
| 36/19, 19/10
|{{UDnote|step=87}}
| M7, Kd8
| major seventh, komma-up diminished octave
| M7
|-
|-
|49
| 88
|45L 4s
| 1123.404
| 21/11, (25/13)
| 44/23, 23/12
|{{UDnote|step=88}}
| LM7, Od8
| large major seventh, on diminished octave
|
|-
|-
|50
| 89
|44L 6s
| 1136.170
| 27/14, 52/27, (48/25)
|
|{{UDnote|step=89}}
| SM7, Td8, Ud8, (KKd8)
| super major seventh, tall diminished octave, unter diminished octave, (classic diminished octave)
| AA6
|-
|-
|51
| 90
|43L 8s
| 1148.936
| 64/33, (35/18, 68/35, 33/17)
| 33/17
|{{UDnote|step=90}}
| u8, t8, HM7
| unter octave, tiny octave, hyper major seventh
|
|-
|-
|52
| 91
|42L 10s
| 1161.702
| 88/45, 39/20
| 45/23
|{{UDnote|step=91}}
| o8, h8
| off octave, hypo octave
|
|-
|-
|53
| 92
|41L 12s
| 1174.468
| 160/81, 63/32, (49/25)
|
|{{UDnote|step=92}}
| k8, s8
| komma-down octave, sub octave
|
|-
|-
|54
| 93
|40L 14s
| 1187.234
| 891/448, 484/243, (486/245, 99/50, 196/99)
|
|{{UDnote|step=93}}
| l8, r8
| little octave, octave - rastma
|
|-
|-
|55
| 94
|39L 16s
| 1200.000
| 2/1
|
|{{UDnote|step=94}}
| P8
| perfect octave
| P8
|}
 
There are perhaps nine functional minor thirds varying between 242.553 cents and 344.681 cents, and one can even go beyond those boundaries under the right conditions, so musicians playing in 94edo have a lot more flexibility in terms of the particular interval shadings they might use depending on context.
 
The perfect fifth has three, or perhaps even five, functional options, each differing by one step. The lower and higher variants provide a change in interval quality, and can be helpful in creating subsets which mimic other edos, and close the circle of fifths in different numbers of pitches. For example, a close approximation to 41edo can be made using a chain of forty 702.128 cent fifths and one wide fifth at 714.894 cents, with an improvement on the tuning of most simple consonances in close keys, but a 1-step variation in interval quality as one modulates to more distant keys.
 
Every odd-numbered interval can generate the entire tuning of 94edo except for the 600-cent [[tritone]] (47\94), which divides the octave exactly in half.
 
The regular major second divisible into 16 equal parts can be helpful for realising some of the subtle tunings of Ancient Greek [[tetrachord]]al theory, [[Indian]] raga and Turkish [[maqam]], though it has not been used historically as a division in those musical cultures.
 
While having the whole gamut of 94 intervals available on a keyboard or other instrument would be quite a feat, one can get a lot out of a 41-tone chain of fifths (with the odd fifth one degree wide) or a 53-tone chain of fifths (with the odd fifth one degree narrow), where the subset behaves much like a well-temperament, arguably usable in all keys but with some interval size variation between closer and more distant keys.
 
== Notation ==
94edo can be notated in [[Sagittal notation|Sagittal]] using the [[Sagittal_notation#Athenian_extension_single-shaft|Athenian extension]], with the apotome equating to 9 edosteps and the limma to 7 edosteps.
{| class="wikitable" style="text-align: center;"
!Degree
!−9
!−8
!−7
!−6
!−5
!−4
!−3
!−2
!−1
!0
!+1
!+2
!+3
!+4
!+5
!+6
!+7
!+8
!+9
|-
|-
|56
!Evo
|38L 18s
|{{sagittal|b}}
|{{sagittal|b}}{{sagittal|~|(}}
|{{sagittal|b}}{{sagittal|/|}}
|{{sagittal|b}}{{sagittal|(|(}}
|{{sagittal|b}}{{sagittal|/|\}}
| rowspan="2" |{{sagittal|\!/}}
| rowspan="2" |{{sagittal|(!(}}
| rowspan="2" |{{sagittal|\!}}
| rowspan="2" |{{sagittal|~!(}}
| rowspan="2" |{{sagittal||//|}}
| rowspan="2" |{{sagittal|~|(}}
| rowspan="2" |{{sagittal|/|}}
| rowspan="2" |{{sagittal|(|(}}
| rowspan="2" |{{sagittal|/|\}}
|{{sagittal|#}}{{sagittal|\!/}}
|{{sagittal|#}}{{sagittal|(!(}}
|{{sagittal|#}}{{sagittal|\!}}
|{{sagittal|#}}{{sagittal|~!(}}
|{{sagittal|#}}
|-
|-
|57
!Revo
|37L 20s
|{{sagittal|\!!/}}
|{{sagittal|(!!(}}
|{{sagittal|!!/}}
|{{sagittal|~!!(}}
|{{sagittal|(!)}}
|{{sagittal|(|)}}
|{{sagittal|~||(}}
|{{sagittal|||\}}
|{{sagittal|(||(}}
|{{sagittal|/||\}}
|}
 
== Regular temperament properties ==
{| class="wikitable center-4 center-5 center-6"
|-
|-
|58
! rowspan="2" | [[Subgroup]]
|36L 22s
! rowspan="2" | [[Comma list]]
! rowspan="2" | [[Mapping]]
! rowspan="2" | Optimal<br>8ve stretch (¢)
! colspan="2" | Tuning error
|-
|-
|59
! [[TE error|Absolute]] (¢)
|35L 24s
! [[TE simple badness|Relative]] (%)
|-
|-
|60
| 2.3
|34L 26s
| {{monzo| 149 -94 }}
| {{mapping| 94 149 }}
| −0.054
| 0.054
| 0.43
|-
|-
|61
| 2.3.5
|33L 28s
| 32805/32768, 9765625/9565938
| {{mapping| 94 149 218 }}
| +0.442
| 0.704
| 5.52
|-
|-
|62
| 2.3.5.7
|32L 30s
| 225/224, 3125/3087, 118098/117649
| {{mapping| 94 149 218 264 }}
| +0.208
| 0.732
| 5.74
|-
|-
|63
| 2.3.5.7.11
|31L 32s
| 225/224, 385/384, 1331/1323, 2200/2187
| {{mapping| 94 149 218 264 325 }}
| +0.304
| 0.683
| 5.35
|-
|-
|64
| 2.3.5.7.11.13
|30L 34s
| 225/224, 275/273, 325/324, 385/384, 1331/1323
| {{mapping| 94 149 218 264 325 348 }}
| +0.162
| 0.699
| 5.48
|-
|-
|65
| 2.3.5.7.11.13.17
|29L 36s
| 170/169, 225/224, 275/273, 289/288, 325/324, 385/384
| {{mapping| 94 149 218 264 325 348 384 }}
| +0.238
| 0.674
| 5.28
|-
|-
|66
| 2.3.5.7.11.13.17.19
|28L 38s
| 170/169, 190/189, 225/224, 275/273, 289/288, 325/324, 385/384
| {{mapping| 94 149 218 264 325 348 384 399 }}
| +0.323
| 0.669
| 5.24
|-
|-
|67
| 2.3.5.7.11.13.17.19.23
|27L 40s
| 170/169, 190/189, 209/208, 225/224, 275/273, 289/288, 300/299, 323/322
| {{mapping| 94 149 218 264 325 348 384 399 425 }}
| +0.354
| 0.637
| 4.99
|}
* 94et is lower in relative error than any previous equal temperaments in the 23-limit, and the next equal temperament that does better in this subgroup is [[190edo|190g]].
 
=== Rank-2 temperaments ===
{| class="wikitable center-all left-5"
|+ style="font-size: 105%;" | Table of rank-2 temperaments by generator
|-
|-
|68
! Periods<br>per 8ve
|26L 42s
! Generator*
! Cents*
! Associated<br>ratio*
! Temperament
|-
|-
|69
| 1
|25L 44s
| 3\94
| 38.30
| 49/48
| [[Slender]]
|-
|-
|70
| 1
|24L 46s
| 5\94
| 63.83
| 25/24
| [[Betic]]
|-
|-
|71
| 1
|23L 48s
| 11\94
| 140.43
| 243/224
| [[Tsaharuk]] / [[quanic]]
|-
| 1
| 13\94
| 165.96
| 11/10
| [[Tertiaschis]]
|-
| 1
| 19\94
| 242.55
| 147/128
| [[Septiquarter]]
|-
|-
|72
| 1
|22L 50s
| 39\94
| 497.87
| 4/3
| [[Garibaldi]] / [[cassandra]]
|-
|-
|73
| 2
|21L 52s
| 2\94
| 25.53
| 64/63
| [[Ketchup]]
|-
|-
|74
| 2
|20L 54s
| 11\94
| 140.43
| 27/25
| [[Fifive]]
|-
|-
|75
| 2
|19L 56s
| 30\94
| 382.98
| 5/4
| [[Wizard]] / [[gizzard]]
|-
| 2
| 34\94
| 434.04
| 9/7
| [[Pogo]] / [[supers]]
|-
| 2
| 43\94
| 548.94
| 11/8
| [[Kleischismic]]
|}
|}
[[Category:Theory]]
<nowiki/>* [[Normal lists|Octave-reduced form]], reduced to the first half-octave, and [[Normal lists|minimal form]] in parentheses if distinct
[[Category:Equal divisions of the octave]]
 
Below are some 23-limit temperaments supported by 94et. It might be noted that 94, a very good tuning for [[garibaldi temperament]], shows us how to extend it to the 23-limit.
 
* {{nowrap|46 &amp; 94}}
* {{nowrap|68 &amp; 94}}
* {{nowrap|53 &amp; 94}}  (one garibaldi)
* {{nowrap|41 &amp; 94}}  (another garibaldi, only differing in the mappings of 17 and 23)
* {{nowrap|135 &amp; 94}}  (another garibaldi)
* {{nowrap|130 &amp; 94}}  (a pogo extension)
* {{nowrap|58 &amp; 94}}  (a supers extension)
* {{nowrap|50 &amp; 94}}
* {{nowrap|72 &amp; 94}}  (a gizzard extension)
* {{nowrap|80 &amp; 94}}
* 94 solo  (a rank one temperament!)
 
Temperaments to which 94et can be detempered:  
 
* [[Satin]] ({{nowrap|94 & 311}})
* {{nowrap|94 & 422}}
 
== Scales ==
* [[Garibaldi5]]
* [[Garibaldi7]]
* [[Garibaldi12]]
* [[Garibaldi17]]
 
== Instruments ==
94edo can be played on the Lumatone, although due to the sheer number of notes it does require compromises in either the range or gamut:
* [[Lumatone mapping for 94edo]]
 
One can also use a [[skip fretting]] system:
* [[Skip fretting system 94 7 16]]
 
== Music ==
; [[Bryan Deister]]
* [https://www.youtube.com/shorts/Zx4xbJhXmgc ''microtonal improvisation in 94edo''] (2025)
 
; [[Cam Taylor]]
* [https://archive.org/details/41-94edo09sept2017 4 Improvisations Saturday 9th September 2017]
* [https://archive.org/details/4194EDOBosanquetAxis18thAug20181FeelingSadButWarmingUp Feeling Sad But Warming Up (in 2 parts)]
* [https://archive.org/details/4191edoPlayingWithThe13Limit Playing with the 13-limit]
 
[[Category:94edo| ]] <!-- main article -->
[[Category:94edo| ]] <!-- main article -->
[[Category:Garibaldi]]
[[Category:Garibaldi]]
[[Category:Marvel]]
[[Category:Marvel]]
[[Category:Listen]]

Latest revision as of 00:26, 16 August 2025

← 93edo 94edo 95edo →
Prime factorization 2 × 47
Step size 12.766 ¢ 
Fifth 55\94 (702.128 ¢)
(semiconvergent)
Semitones (A1:m2) 9:7 (114.9 ¢ : 89.36 ¢)
Consistency limit 23
Distinct consistency limit 13

94 equal divisions of the octave (abbreviated 94edo or 94ed2), also called 94-tone equal temperament (94tet) or 94 equal temperament (94et) when viewed under a regular temperament perspective, is the tuning system that divides the octave into 94 equal parts of about 12.8 ¢ each. Each step represents a frequency ratio of 21/94, or the 94th root of 2.

Theory

94edo is a remarkable all-around utility tuning system, good from low prime limit to very high prime limit situations. It is the first edo to be consistent through the 23-odd-limit, and no other edo is so consistent until 282 and 311 make their appearance.

Its step size is close to that of 144/143, which is consistently represented in this tuning system.

As a tuning of other temperaments

94edo can also be thought of as the "sum" of 41edo and 53edo (41 + 53 = 94), both of which are not only known for their approximation of Pythagorean tuning, but also support a variety of schismatic temperament known as cassandra (which is itself a variety of garibaldi), tempering out 32805/32768, 225/224, and 385/384. Therefore, 94edo's fifth is the mediant of these two edos' fifths; it is slightly sharp of just and less accurate than 53edo's fifth, but more accurate than 41edo's, and acts as a generator for a highly optimized and high-prime-limit form of cassandra. Few, if any, edos that support schismatic by patent val have at least as high of a consistency limit as 94edo while also having a fifth that can stack to reach any interval in it.

The list of 23-limit commas it tempers out is huge, and in lower prime limits, it also tempers out 3125/3087, 4000/3969, 5120/5103 and 540/539. It provides the optimal patent val for gassormic, the rank-5 temperament tempering out 275/273 (despite one edostep being very close in size to this comma), and for a number of other temperaments, such as isis.

94edo is an excellent edo for Carlos Beta scale, since the difference between 1 step of Carlos Beta and 5 steps of 94edo is only 0.00314534 cents.

Prime harmonics

Approximation of prime harmonics in 94edo
Harmonic 2 3 5 7 11 13 17 19 23 29 31
Error Absolute (¢) +0.00 +0.17 -3.33 +1.39 -2.38 +2.03 -2.83 -3.90 -2.74 +4.47 +3.90
Relative (%) +0.0 +1.4 -26.1 +10.9 -18.7 +15.9 -22.2 -30.5 -21.5 +35.0 +30.6
Steps
(reduced) 		94
(0) 		149
(55) 		218
(30) 		264
(76) 		325
(43) 		348
(66) 		384
(8) 		399
(23) 		425
(49) 		457
(81) 		466
(90)

Subsets and supersets

Since 94 factors into primes as 2 × 47, 94edo contains 2edo and 47edo as subset edos. It can be thought of as two sets of 47edo offset by one step of 94edo. It inherits from 47edo's good approximations of primes 5, 7, 13, and 17, while dramatically improving on prime 3, as well as primes 11, 19, and 23 to a lesser degree.

Intervals

See also: Table of 94edo intervals

Assuming 23-limit patent val ⟨94 149 218 264 325 348 384 399 425], here is a table of intervals as approximated by 94edo steps, and their corresponding 13-limit well-ordered extended diatonic interval names. 'S/s' indicates alteration by the septimal comma, 64/63; 'K/k' indicates alteration by the syntonic comma, 81/80; 'U/u' by the undecimal quartertone, 33/32; 'L/l' by pentacircle comma, 896/891; 'O/o' by 45/44; 'R/r' by the rastma, 243/242; 'T/t' by the tridecimal quartertone, 1053/1024; and finally, 'H/h', by 40/39. Capital letters alter downward, lowercase alter upwards. Important 13-limit intervals approximated that are not associated with the extended diatonic interval names are added in brackets. Multiple alterations by 'K' down from augmented and major, or up from diminished and minor intervals are also added in brackets, along with their associated (5-limit) intervals.

Step Cents 13-limit 23-limit Ups and downs Short-form WOFED Long-form WOFED Diatonic
0 0 1/1 D
1 12.766 896/891, 243/242, (3125/3072, 245/243, 100/99, 99/98) 85/84 ^D, ^3E♭♭ L1, R1 large unison, rastma
2 25.532 81/80, 64/63, (50/49) ^^D, ^4E♭♭ K1, S1 komma, super unison
3 38.298 45/44, 40/39, (250/243, 49/48) 46/45 ^3D, v4E♭ O1, H1 on unison, hyper unison
4 51.064 33/32, (128/125, 36/35, 35/34, 34/33) ^4D, v3E♭ U1, T1, hm2 uber unison, tall unison, hypo minor second
5 63.830 28/27, 729/704, 27/26, (25/24) v4D♯, vvE♭ sm2, uA1, tA1, (kkA1) sub minor second, unter augmented unison, tiny augmented unison, (classic augmented unison) dd3
6 76.596 22/21, (648/625, 26/25) 23/22, 24/23 v3D♯, vE♭ lm2, oA1 little minor second, off augmented unison
7 89.362 256/243, 135/128, (21/20) 19/18, 20/19 vvD♯, E♭ m2, kA1 minor second, komma-down augmented unison m2
8 102.128 128/121, (35/33) 17/16, 18/17 vD♯, ^E♭ Rm2, rA1 rastmic minor second, rastmic augmented unison
9 114.894 16/15, (15/14) D♯, ^^E♭ Km2, A1 classic minor second, augmented unison A1
10 127.660 320/297, 189/176, (14/13) ^D♯, ^3E♭ Om2, LA1 oceanic minor second, large augmented unison
11 140.426 88/81, 13/12, 243/224, (27/25) 25/23, 38/35 ^^D♯, ^4E♭ n2, Tm2, SA1, (KKm2) lesser neutral second, tall minor second, super augmented unison, (2-komma-up minor second)
12 153.191 12/11, (35/32) 23/21 ^3D♯, v4E N2, tM2, HA1 greater netral second, tiny major second, hyper augmented unison ddd4
13 165.957 11/10 ^4D♯, v3E oM2 off major second
14 178.723 10/9 21/19 v4D𝄪, vvE kM2 komma-down major second d3
15 191.489 121/108, (49/44, 39/35) 19/17 v3D𝄪, vE rM2 rastmic major second
16 204.255 9/8 E M2 major second M2
17 217.021 112/99, (25/22) 17/15, 26/23 ^E, ^3F♭ LM2 large major second
18 229.787 8/7 ^^E, ^4F♭ SM2 super major second AA1
19 242.553 15/13 23/20, 38/33 ^3E, v4F HM2 hyper major second
20 255.319 52/45 22/19 ^4E, v3F hm3 hypo minor third
21 268.085 7/6, (75/64) v4E♯, vvF sm3, (kkA2) sub minor third, (classic augmented second) dd4
22 280.851 33/28 20/17, 27/23 v3E♯, vF lm3 little minor third
23 293.617 32/27, (25/21, 13/11) 19/16 F m3 minor third m3
24 306.383 144/121, (81/70) ^F, ^3G♭♭ Rm3 rastmic minor third
25 319.149 6/5 ^^F, ^4G♭♭ Km3 classic minor third A2
26 331.915 40/33 17/14, 23/19 ^3F, v4G♭ Om3 on minor third
27 344.681 11/9, 39/32, (243/200, 60/49) 28/23 ^4F, v3G♭ n3, Tm3 lesser neutral third, tall minor third AAA1
28 357.447 27/22, 16/13, (100/81,49/40) v4F♯, vvG♭ N3, tM3 greater neutral third, tiny major third ddd5
29 370.213 99/80, (26/21) 21/17 v3F♯, vG♭ oM3 off major third
30 382.979 5/4 vvF♯, G♭ kM3 classic major third d4
31 395.745 121/96, (34/27) vF♯, ^G♭ rM3 rastmic major third
32 408.511 81/64, (33/26) 19/15, 24/19 F♯, ^^G♭ M3 major third M3
33 421.277 14/11 23/18 ^F♯, ^3G♭ LM3 large major third
34 434.043 9/7, (32/25) ^^F♯, ^4G♭ SM3, (KKd4) super major third, (classic diminished fourth) AA2
35 446.809 135/104, (35/27) 22/17 ^3F♯, v4G HM3 hyper major third ddd6
36 459.574 13/10 17/13, 30/23 ^4F♯, v3G h4 hypo fourth
37 472.340 21/16 25/19, 46/35 v4F𝄪, vvG s4 sub fourth dd5
38 485.106 297/224 v3F𝄪, vG l4 little fourth
39 497.872 4/3 G P4 perfect fourth P4
40 510.638 162/121, (35/26) ^G, ^3A♭♭ R4 rastmic fourth
41 523.404 27/20 19/14, 23/17 ^^G, ^4A♭♭ K4 komma-up fourth A3
42 536.170 15/11 34/25 ^3G, v4A♭ O4 on fourth
43 548.936 11/8 26/19 ^4G, v3A♭ U4, T4 uber/undecimal fourth, tall fourth AAA2
44 561.702 18/13, (25/18) v4G♯, vvA♭ tA4, uA4, (kkA4) tiny augmented fourth, unter augmented fourth, (classic augmented fourth) dd6
45 574.468 88/63 32/23, 46/33 v3G♯, vA♭ ld5, oA4 little diminished fifth, off augmented fourth
46 587.234 45/32, (7/5) 38/27 vvG♯, A♭ kA4 komma-down augmented fourth d5
47 600.000 363/256, 512/363, (99/70) 17/12, 24/17 vG♯, ^A♭ rA4, Rd5 rastmic augmented fourth, rastmic diminished fifth
48 612.766 64/45, (10/7) 27/19 G♯, ^^A♭ Kd5 komma-up diminished fifth A4
49 625.532 63/44 23/16, 33/23 ^G♯, ^3A♭ LA4, Od5 large augmented fourth, off diminished fifth
50 638.298 13/9, (36/25) ^^G♯, ^4A♭ Td5, Ud5, (KKd5) tall diminished fifth, uber diminished fifth, (classic diminished fifth) AA3
51 651.064 16/11 19/13 ^3G♯, v4A u5, t5 unter/undecimal fifth, tiny fifth ddd7
52 663.830 22/15 25/17 ^4G♯, v3A o5 off fifth
53 676.596 40/27 28/19, 34/23 v4G𝄪, vvA k5 komma-down fifth d6
54 689.362 121/81, (52/35) v3G𝄪, vA r5 rastmic fifth
55 702.128 3/2 A P5 perfect fifth P5
56 714.894 448/297 ^A, ^3B♭♭ L5 large fifth
57 727.660 32/21 38/25, 35/23 ^^A, ^4B♭♭ S5 super fifth AA4
58 740.426 20/13 26/17, 23/15 ^3A, v4B♭ H5 hyper fifth
59 753.191 208/135 17/11 ^4A, v3B♭ hm6 hypo minor sixth AAA3
60 765.957 14/9, (25/16) v4A♯, vvB♭ sm6, (kkA5) sub minor sixth, (classic augmented fifth) dd7
61 778.723 11/7 36/23 v3A♯, vB♭ lm6 little minor sixth
62 791.489 128/81 19/12, 30/19 vvA♯, B♭ m6 minor sixth m6
63 804.255 192/121 27/17 vA♯, ^B♭ Rm6 rastmic minor sixth
64 817.021 8/5 A♯, ^^B♭ Km6 classic minor sixth A5
65 829.787 160/99, (21/13) 34/21 ^A♯, ^3B♭ Om6 on minor sixth
66 842.553 44/27, 13/8, (81/50, 80/49) ^^A♯, ^4B♭ n6, Tm6 less neutral sixth, tall minor sixth AAA4
67 855.319 18/11, 64/39, (400/243, 49/30) 23/14 ^3A♯, v4B N6, tM6 greater neutral sixth, tiny minor sixth ddd8
68 868.085 33/20 28/17, 38/23 ^4A♯, v3B oM6 off major sixth
69 880.851 5/3 v4A𝄪, vvB kM6 classic major sixth d7
70 893.617 121/72 v3A𝄪, vB rM6 rastmic major sixth
71 906.383 27/16, (42/35, 22/13) 32/19 B M6 major sixth M6
72 919.149 56/33 17/10, 46/27 ^B, ^3C♭ LM6 large major sixth
73 931.915 12/7, (128/75) ^^B, ^4C♭ SM6, (KKd7) super major sixth (classic diminished seventh) AA5
74 944.681 45/26 19/11 ^3B, v4C HM6 hyper major sixth
75 957.447 26/15 40/23, 33/19 ^4B, v3C hm7 hypo minor seventh
76 970.213 7/4 v4B♯, vvC sm7 sub minor seventh dd8
77 982.979 99/56, (44/25) 30/17, 23/13 v3B♯, vC lm7 little minor seventh
78 995.745 16/9 C m7 minor seventh m7
79 1008.511 216/121 34/19 ^C, ^3D♭♭ Rm7 rastmic minor seventh
80 1021.277 9/5 38/21 ^^C, ^4D♭♭ Km7 classic minor seventh A6
81 1034.043 20/11 ^3C, v4D♭ Om7 on minor seventh
82 1046.809 11/6, (64/35) 42/23 ^4C, v3D♭ n7, Tm7, hd8 less neutral seventh, tall minor seventh, hypo diminished octave AAA5
83 1059.574 81/44, 24/13, (50/27) 46/25, 35/19 v4C♯, vvD♭ N7, tM7, sd8, (kkM7) greater neutral seventh, tiny major seventh, sub diminished octave, (2-comma down major seventh)
84 1072.340 297/160, 144/91, (13/7) v3C♯, vD♭ oM7, ld8 off major seventh, little diminished octave
85 1085.106 15/8, (28/15) vvC♯, D♭ kM7, d8 classic major seventh, diminished octave d8
86 1097.872 121/64 32/17, 17/9 vC♯, ^D♭ rM7, Rd8 rastmic major seventh, rastmic diminished octave
87 1110.638 243/128, 256/135, (40/21) 36/19, 19/10 C♯, ^^D♭ M7, Kd8 major seventh, komma-up diminished octave M7
88 1123.404 21/11, (25/13) 44/23, 23/12 ^C♯, ^3D♭ LM7, Od8 large major seventh, on diminished octave
89 1136.170 27/14, 52/27, (48/25) ^^C♯, ^4D♭ SM7, Td8, Ud8, (KKd8) super major seventh, tall diminished octave, unter diminished octave, (classic diminished octave) AA6
90 1148.936 64/33, (35/18, 68/35, 33/17) 33/17 ^3C♯, v4D u8, t8, HM7 unter octave, tiny octave, hyper major seventh
91 1161.702 88/45, 39/20 45/23 ^4C♯, v3D o8, h8 off octave, hypo octave
92 1174.468 160/81, 63/32, (49/25) v4C𝄪, vvD k8, s8 komma-down octave, sub octave
93 1187.234 891/448, 484/243, (486/245, 99/50, 196/99) v3C𝄪, vD l8, r8 little octave, octave - rastma
94 1200.000 2/1 D P8 perfect octave P8

There are perhaps nine functional minor thirds varying between 242.553 cents and 344.681 cents, and one can even go beyond those boundaries under the right conditions, so musicians playing in 94edo have a lot more flexibility in terms of the particular interval shadings they might use depending on context.

The perfect fifth has three, or perhaps even five, functional options, each differing by one step. The lower and higher variants provide a change in interval quality, and can be helpful in creating subsets which mimic other edos, and close the circle of fifths in different numbers of pitches. For example, a close approximation to 41edo can be made using a chain of forty 702.128 cent fifths and one wide fifth at 714.894 cents, with an improvement on the tuning of most simple consonances in close keys, but a 1-step variation in interval quality as one modulates to more distant keys.

Every odd-numbered interval can generate the entire tuning of 94edo except for the 600-cent tritone (47\94), which divides the octave exactly in half.

The regular major second divisible into 16 equal parts can be helpful for realising some of the subtle tunings of Ancient Greek tetrachordal theory, Indian raga and Turkish maqam, though it has not been used historically as a division in those musical cultures.

While having the whole gamut of 94 intervals available on a keyboard or other instrument would be quite a feat, one can get a lot out of a 41-tone chain of fifths (with the odd fifth one degree wide) or a 53-tone chain of fifths (with the odd fifth one degree narrow), where the subset behaves much like a well-temperament, arguably usable in all keys but with some interval size variation between closer and more distant keys.

Notation

94edo can be notated in Sagittal using the Athenian extension, with the apotome equating to 9 edosteps and the limma to 7 edosteps.

Degree −9 −8 −7 −6 −5 −4 −3 −2 −1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9
Evo ⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠⁠ ⁠ ⁠ ⁠
Revo ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠ ⁠

Regular temperament properties

Subgroup Comma list Mapping Optimal
8ve stretch (¢) 		Tuning error
Absolute (¢) Relative (%)
2.3 [149 -94⟩ [⟨94 149]] −0.054 0.054 0.43
2.3.5 32805/32768, 9765625/9565938 [⟨94 149 218]] +0.442 0.704 5.52
2.3.5.7 225/224, 3125/3087, 118098/117649 [⟨94 149 218 264]] +0.208 0.732 5.74
2.3.5.7.11 225/224, 385/384, 1331/1323, 2200/2187 [⟨94 149 218 264 325]] +0.304 0.683 5.35
2.3.5.7.11.13 225/224, 275/273, 325/324, 385/384, 1331/1323 [⟨94 149 218 264 325 348]] +0.162 0.699 5.48
2.3.5.7.11.13.17 170/169, 225/224, 275/273, 289/288, 325/324, 385/384 [⟨94 149 218 264 325 348 384]] +0.238 0.674 5.28
2.3.5.7.11.13.17.19 170/169, 190/189, 225/224, 275/273, 289/288, 325/324, 385/384 [⟨94 149 218 264 325 348 384 399]] +0.323 0.669 5.24
2.3.5.7.11.13.17.19.23 170/169, 190/189, 209/208, 225/224, 275/273, 289/288, 300/299, 323/322 [⟨94 149 218 264 325 348 384 399 425]] +0.354 0.637 4.99
  • 94et is lower in relative error than any previous equal temperaments in the 23-limit, and the next equal temperament that does better in this subgroup is 190g.

Rank-2 temperaments

Table of rank-2 temperaments by generator
Periods
per 8ve 		Generator* Cents* Associated
ratio* 		Temperament
1 3\94 38.30 49/48 Slender
1 5\94 63.83 25/24 Betic
1 11\94 140.43 243/224 Tsaharuk / quanic
1 13\94 165.96 11/10 Tertiaschis
1 19\94 242.55 147/128 Septiquarter
1 39\94 497.87 4/3 Garibaldi / cassandra
2 2\94 25.53 64/63 Ketchup
2 11\94 140.43 27/25 Fifive
2 30\94 382.98 5/4 Wizard / gizzard
2 34\94 434.04 9/7 Pogo / supers
2 43\94 548.94 11/8 Kleischismic

* Octave-reduced form, reduced to the first half-octave, and minimal form in parentheses if distinct

Below are some 23-limit temperaments supported by 94et. It might be noted that 94, a very good tuning for garibaldi temperament, shows us how to extend it to the 23-limit.

  • 46 & 94
  • 68 & 94
  • 53 & 94 (one garibaldi)
  • 41 & 94 (another garibaldi, only differing in the mappings of 17 and 23)
  • 135 & 94 (another garibaldi)
  • 130 & 94 (a pogo extension)
  • 58 & 94 (a supers extension)
  • 50 & 94
  • 72 & 94 (a gizzard extension)
  • 80 & 94
  • 94 solo (a rank one temperament!)

Temperaments to which 94et can be detempered:

  • Satin (94 & 311)
  • 94 & 422

Scales

Instruments

94edo can be played on the Lumatone, although due to the sheer number of notes it does require compromises in either the range or gamut:

One can also use a skip fretting system:

Music

Bryan Deister
Cam Taylor
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