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{{Interwiki
| en = 43edo
| de = 43-EDO
}}
{{Infobox ET}}
{{Infobox ET}}
{{ED intro}}
{{ED intro}}
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| 0
| 0
| 0.0
| 0.0
| 1/1
| [[1/1]]
| P1
| P1
| perfect unison
| perfect unison
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| 1
| 1
| 27.9
| 27.9
| ''36/35'', 50/49, 64/63, 65/64, 66/65
| ''[[36/35]]'', [[50/49]], [[64/63]], [[65/64]], [[66/65]]
| ^1, d2
| ^1, d2
| up unison, dim 2nd
| up unison, dim 2nd
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| 2
| 2
| 55.8
| 55.8
| 26/25, 27/26, 33/32, 40/39, ''49/48''
| [[26/25]], [[27/26]], [[33/32]], [[40/39]], ''[[49/48]]''
| vA1, ^d2
| vA1, ^d2
| downaug unison, updim 2nd
| downaug unison, updim 2nd
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| 3
| 3
| 83.7
| 83.7
| ''18/17'', 21/20, 22/21, 25/24, ''28/27''
| ''[[18/17]]'', [[21/20]], [[22/21]], [[25/24]], ''[[28/27]]''
| A1, vm2
| A1, vm2
| aug 1sn, downminor 2nd
| aug 1sn, downminor 2nd
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| 4
| 4
| 111.6
| 111.6
| 15/14, 16/15, 17/16
| [[15/14]], [[16/15]], [[17/16]]
| m2
| m2
| minor 2nd
| minor 2nd
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| 5
| 5
| 139.5
| 139.5
| 12/11, 13/12, 14/13
| [[12/11]], [[13/12]], [[14/13]]
| ^m2
| ^m2
| upminor 2nd
| upminor 2nd
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| 6
| 6
| 167.4
| 167.4
| 11/10
| [[11/10]]
| vM2
| vM2
| downmajor 2nd
| downmajor 2nd
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| 7
| 7
| 195.3
| 195.3
| 9/8, 10/9
| [[9/8]], [[10/9]]
| M2
| M2
| major 2nd
| major 2nd
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| 8
| 8
| 223.3
| 223.3
| 8/7
| [[8/7]]
| ^M2, d3
| ^M2, d3
| upmajor 2nd, dim 3rd
| upmajor 2nd, dim 3rd
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| 9
| 9
| 251.2
| 251.2
| 15/13
| [[15/13]]
| vA2, ^d3
| vA2, ^d3
| downaug 2nd, updim 3rd
| downaug 2nd, updim 3rd
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| 10
| 10
| 279.1
| 279.1
| 7/6, 13/11
| [[7/6]], [[13/11]], [[20/17]]
| A2, vm3
| A2, vm3
| aug 2nd, downminor 3rd
| aug 2nd, downminor 3rd
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| 11
| 11
| 307.0
| 307.0
| 6/5
| [[6/5]]
| m3
| m3
| minor 3rd
| minor 3rd
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| 12
| 12
| 334.9
| 334.9
| 17/14, ''27/22'', 39/32, 40/33
| [[17/14]], ''[[27/22]]'', [[39/32]], [[40/33]]
| ^m3
| ^m3
| upminor 3rd
| upminor 3rd
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| 13
| 13
| 362.8
| 362.8
| ''11/9'', 16/13, 21/17, 26/21
| ''[[11/9]]'', [[16/13]], [[21/17]], [[26/21]]
| vM3
| vM3
| downmajor 3rd
| downmajor 3rd
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| 14
| 14
| 390.7
| 390.7
| 5/4
| [[5/4]]
| M3
| M3
| major 3rd
| major 3rd
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| 15
| 15
| 418.6
| 418.6
| ''9/7'', 14/11
| ''[[9/7]]'', [[14/11]]
| ^M3, d4
| ^M3, d4
| upmajor 3rd, dim 4th
| upmajor 3rd, dim 4th
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| 16
| 16
| 446.5
| 446.5
| 13/10, 22/17
| [[13/10]], [[22/17]]
| vA3, ^d4
| vA3, ^d4
| downaug 3rd, updim 4th
| downaug 3rd, updim 4th
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| 17
| 17
| 474.4
| 474.4
| 21/16
| [[21/16]]
| v4
| v4
| down 4th
| down 4th
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| 18
| 18
| 502.3
| 502.3
| 4/3
| [[4/3]]
| P4
| P4
| perfect 4th
| perfect 4th
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| 19
| 19
| 530.2
| 530.2
| 15/11
| [[15/11]]
| ^4
| ^4
| up 4th
| up 4th
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| 20
| 20
| 558.1
| 558.1
| 11/8, 18/13
| [[11/8]], [[18/13]]
| vA4
| vA4
| downaug 4th
| downaug 4th
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| 21
| 21
| 586.0
| 586.0
| 7/5, 24/17, 45/32
| [[7/5]], [[24/17]], [[45/32]]
| A4, vd5
| A4, vd5
| aug 4th, downdim 5th
| aug 4th, downdim 5th
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| 22
| 22
| 614.0
| 614.0
| 10/7, 17/12, 64/45
| [[10/7]], [[17/12]], [[64/45]]
| ^A4, d5
| ^A4, d5
| upaug 4th, dim 5th
| upaug 4th, dim 5th
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| 23
| 23
| 641.9
| 641.9
| 13/9, 16/11
| [[13/9]], [[16/11]]
| ^d5
| ^d5
| updim 5th
| updim 5th
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| 24
| 24
| 669.8
| 669.8
| 22/15
| [[22/15]]
| v5
| v5
| down 5th
| down 5th
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| 25
| 25
| 697.7
| 697.7
| 3/2
| [[3/2]]
| P5
| P5
| perfect 5th
| perfect 5th
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| 26
| 26
| 725.6
| 725.6
| 32/21
| [[32/21]]
| ^5
| ^5
| up 5th
| up 5th
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| 27
| 27
| 753.5
| 753.5
| 17/11, 20/13
| [[17/11]], [[20/13]]
| vA5, ^d6
| vA5, ^d6
| downaug 5th, updim 6th
| downaug 5th, updim 6th
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| 28
| 28
| 781.4
| 781.4
| 11/7, ''14/9''
| [[11/7]], ''[[14/9]]''
| A5, vm6
| A5, vm6
| aug 5th, downminor 6th
| aug 5th, downminor 6th
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| 29
| 29
| 809.3
| 809.3
| 8/5
| [[8/5]]
| m6
| m6
| minor 6th
| minor 6th
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| 30
| 30
| 837.2
| 837.2
| 13/8, ''18/11'', 21/13, 34/21
| [[13/8]], ''[[18/11]]'', [[21/13]], [[34/21]]
| ^m6
| ^m6
| upminor 6th
| upminor 6th
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| 31
| 31
| 865.1
| 865.1
| 28/17, 33/20, ''44/27'', 64/39
| [[28/17]], [[33/20]], ''[[44/27]]'', [[64/39]]
| vM6
| vM6
| downmajor 6th
| downmajor 6th
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| 32
| 32
| 893.0
| 893.0
| 5/3
| [[5/3]]
| M6
| M6
| major 6th
| major 6th
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| 33
| 33
| 920.9
| 920.9
| 12/7, 22/13
| [[12/7]], [[22/13]], [[17/10]]
| ^M6, d7
| ^M6, d7
| upmajor 6th, dim 7th
| upmajor 6th, dim 7th
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| 34
| 34
| 948.8
| 948.8
| 26/15
| [[26/15]]
| vA6, ^d7
| vA6, ^d7
| downaug 6th, updim 7th
| downaug 6th, updim 7th
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| 35
| 35
| 976.7
| 976.7
| 7/4
| [[7/4]]
| A6, vm7
| A6, vm7
| aug 6th, downminor 7th
| aug 6th, downminor 7th
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| 36
| 36
| 1004.7
| 1004.7
| 9/5, 16/9
| [[9/5]], [[16/9]]
| m7
| m7
| minor 7th
| minor 7th
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| 37
| 37
| 1032.6
| 1032.6
| 20/11
| [[20/11]]
| ^m7
| ^m7
| upminor 7th
| upminor 7th
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| 38
| 38
| 1060.5
| 1060.5
| 11/6, 13/7, 24/13
| [[11/6]], [[13/7]], [[24/13]]
| vM7
| vM7
| downmajor 7th
| downmajor 7th
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| 39
| 39
| 1088.4
| 1088.4
| 15/8, 28/15, 32/17
| [[15/8]], [[28/15]], [[32/17]]
| M7
| M7
| major 7th
| major 7th
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| 40
| 40
| 1116.3
| 1116.3
| ''17/9'', 21/11, ''27/14'', 40/21, 48/25
| ''[[17/9]]'', [[21/11]], ''[[27/14]]'', [[40/21]], [[48/25]]
| ^M7, d8
| ^M7, d8
| upmajor 7th, dim 8ve
| upmajor 7th, dim 8ve
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| 41
| 41
| 1144.2
| 1144.2
| 25/13, 39/20, 52/27, 64/33, ''96/49''
| [[25/13]], [[39/20]], [[52/27]], [[64/33]], ''[[96/49]]''
| vA7, ^d8
| vA7, ^d8
| downaug 7th, updim 8ve
| downaug 7th, updim 8ve
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| 42
| 42
| 1172.1
| 1172.1
| ''35/18'', 49/25, 63/32, 65/33, 128/65
| ''[[35/18]]'', [[49/25]], [[63/32]], [[65/33]], [[128/65]]
| A7, v8
| A7, v8
| aug 7th, down 8ve
| aug 7th, down 8ve
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| 43
| 43
| 1200.0
| 1200.0
| 2/1
| [[2/1]]
| P8
| P8
| perfect 8ve
| perfect 8ve
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Because 43edo is a meantone system, this makes it easier to adapt traditional Western notation to it than to some other tunings. A♯ and B♭ are distinct and the distance between them is one meride. The whole tone is divided into seven merides so this means we can use "third-sharps", "two-thirds-sharps", "third-flats", and "two-thirds-flats" to reach the remaining notes between A and B; notes elsewhere on the scale can be notated similarly.
Because 43edo is a meantone system, this makes it easier to adapt traditional Western notation to it than to some other tunings. A♯ and B♭ are distinct and the distance between them is one meride. The whole tone is divided into seven merides so this means we can use "third-sharps", "two-thirds-sharps", "third-flats", and "two-thirds-flats" to reach the remaining notes between A and B; notes elsewhere on the scale can be notated similarly.


=== Ups and downs notation ===
=== Stein–Zimmermann–Gould notation ===
In [[ups and downs notation]], the "third-sharp" becomes an up and the "two-thirds-sharp" becomes a downsharp.
[[Stein–Zimmermann–Gould notation]] uses sharps and flats with arrows:
Note that downsharp can be respelled as dup (double-up), and upflat as dud.
{{Sharpness-sharp3-szg}}
{{Ups and downs sharpness}}
 
Or one can use the [[Alternative symbols for ups and downs notation#Sharp-3|alternative ups and downs]]. They use sharps and flats with arrows, borrowed from extended [[Helmholtz-Ellis notation|Helmholtz–Ellis]] notation:
{{Sharpness-sharp3}}


The notes between A and B can then be notated as A, A{{naturalup}}, A{{sharpdown}}, A♯, B♭, B{{flatup}}, B{{naturaldown}}, B. Note that A♯ is enharmonic to B{{flatdown}}, and B♭ is enharmonic to A{{sharpup}}.
The notes between A and B can then be notated as A, A{{naturalup}}, A{{sharpdown}}, A♯, B♭, B{{flatup}}, B{{naturaldown}}, B. Note that A♯ is enharmonic to B{{flatdown}}, and B♭ is enharmonic to A{{sharpup}}.
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Double or even triple arrows may arise if the arrows are taken to have their own layer of enharmonic spellings.
Double or even triple arrows may arise if the arrows are taken to have their own layer of enharmonic spellings.
=== Kite's ups and downs notation ===
In [[Kite's ups and downs notation]], the "third-sharp" becomes an up and the "two-thirds-sharp" becomes a downsharp.
Note that downsharp can be respelled as dup (double-up), and upflat as dud.
{{Ups and downs sharpness}}


=== Sagittal notation ===
=== Sagittal notation ===
This notation uses the same sagittal sequence as [[36edo#Sagittal notation|36-EDO]].
This notation uses the same sagittal sequence as [[36edo #Sagittal notation|36edo]].


==== Evo flavor ====
==== Evo flavor ====
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</imagemap>
</imagemap>


=== Red-Blue Notation ===
=== Red-Blue notation ===
For people who are not colorblind, a red-note/blue-note system (similar to that proposed for [[36edo]]) can also be used. (Note that this is different than Kite's [[color notation]].) Now we have the following sequence of notes, each separated by one meride: {{colored note|A}}, {{colored note|red|A}}, {{colored note|blue|A♯}}, {{colored note|A♯}}, {{colored note|B♭}}, {{colored note|red|B♭}}, {{colored note|blue|B}}, {{colored note|B}}. (Note that red sharps or blue flats are enharmonically equivalent to simpler notes: {{colored note|red|A♯}} is enharmonic to B♭, and {{colored note|blue|B♭}} is actually just A♯).
For people who are not colorblind, a red-note/blue-note system (similar to that proposed for [[36edo]]) can also be used. Note that this is different from [[Kite's color notation]]. We have the following sequence of notes, each separated by one meride: {{colored note|A}}, {{colored note|red|A}}, {{colored note|blue|A♯}}, {{colored note|A♯}}, {{colored note|B♭}}, {{colored note|red|B♭}}, {{colored note|blue|B}}, {{colored note|B}}. (Note that red sharps or blue flats are enharmonically equivalent to simpler notes: {{colored note|red|A♯}} is enharmonic to B♭, and {{colored note|blue|B♭}} is actually just A♯).


The diatonic semitone is four steps, so for the region between B and C, we can use: {{colored note|B}}, {{colored note|C♭}}, {{colored note|blue|B♯}}&nbsp;/&nbsp;{{colored note|red|C♭}} (they are enharmonic equivalents), {{colored note|B♯}}, and {{colored note|C}}. All of the notes in 43edo therefore have only one name except for {{colored note|blue|B♯}}&nbsp;/&nbsp;{{colored note|red|C♭}}, and {{colored note|blue|E♯}}&nbsp;/&nbsp;{{colored note|red|F♭}}. It might also be possible to design special symbols for those two notes (resembling a cross between the letters B and C in the former case, and E and F in the latter).
The diatonic semitone is four steps, so for the region between B and C, we can use: {{colored note|B}}, {{colored note|C♭}}, {{colored note|blue|B♯}}&nbsp;/&nbsp;{{colored note|red|C♭}} (they are enharmonic equivalents), {{colored note|B♯}}, and {{colored note|C}}. All of the notes in 43edo therefore have only one name except for {{colored note|blue|B♯}}&nbsp;/&nbsp;{{colored note|red|C♭}}, and {{colored note|blue|E♯}}&nbsp;/&nbsp;{{colored note|red|F♭}}. It might also be possible to design special symbols for those two notes (resembling a cross between the letters B and C in the former case, and E and F in the latter).
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| Spleen comma
| Spleen comma
|}
|}
<references group="note" />


=== Rank-2 temperaments ===
=== Rank-2 temperaments ===
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* Fossa pentatonic scale (approximated from [[catnip]] in [[60edo]]): 5 14 6 6 12
* Fossa pentatonic scale (approximated from [[catnip]] in [[60edo]]): 5 14 6 6 12
* [[Magnetosphere scale]] (approximated from [[Hexany 1728]]): 4 10 11 11 7
* [[Magnetosphere scale]] (approximated from [[Hexany 1728]]): 4 10 11 11 7
== Instruments ==
*[[Lumatone mapping for 43edo]]
*[[Skip fretting system 43 2 9]]
=== Keyboards ===
A possible isomorphic keyboard layout for 43edo:
[[File:Fifth Comma Meantone Keyboard Layout.svg|800px|none|thumb]]


== Music ==
== Music ==
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* [https://www.youtube.com/watch?v=GkuUVQYpjo4 ''Prelude in E Minor "The Great"''] – rendered by Claudi Meneghin (2023)
* [https://www.youtube.com/watch?v=GkuUVQYpjo4 ''Prelude in E Minor "The Great"''] – rendered by Claudi Meneghin (2023)
* [https://www.youtube.com/watch?v=UYaZZXUrGeA ''Prelude in E Minor "The Little"''] – rendered by Claudi Meneghin (2024)
* [https://www.youtube.com/watch?v=UYaZZXUrGeA ''Prelude in E Minor "The Little"''] – rendered by Claudi Meneghin (2024)
; {{W|John Bull (composer)|John Bull}}
* [https://www.youtube.com/watch?v=hkW5aqnhaSc ''Fantasia «Ut Re Mi Fa Sol La»''] (late 1500s/early 1600s, from ''Fitzwilliam Virginal Book Vol.1 No.51'') – rendered by Claudi Meneghin (2026)


; {{W|Frédéric Chopin}}
; {{W|Frédéric Chopin}}
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* [https://www.youtube.com/shorts/URUCEOW3Mqo ''43edo improv''] (2025)
* [https://www.youtube.com/shorts/URUCEOW3Mqo ''43edo improv''] (2025)
* [https://www.youtube.com/shorts/f0zt-iBln44 ''Being for the Benefit of Mr. Kite! - The Beatles (microtonal cover in 43edo)''] (2025)
* [https://www.youtube.com/shorts/f0zt-iBln44 ''Being for the Benefit of Mr. Kite! - The Beatles (microtonal cover in 43edo)''] (2025)
* [https://www.youtube.com/shorts/Qh5rjmsfwE0 ''43edo improv''] (2026)
* [https://www.youtube.com/watch?v=j5qbzEPRUUY ''Waltz in 43edo''] (2026)


; [[Cale Gibbard]]
; [[Cale Gibbard]]
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; [[Xotla]]
; [[Xotla]]
* "Beebounce" from ''Jazzbeetle'' (2023) – [https://open.spotify.com/track/4PzANNtxXsNEsdApnYKgHK Spotify] | [https://xotla.bandcamp.com/track/beebounce-43edo Bandcamp] | [https://youtu.be/EZIg5fojFfE YouTube] – jazzy big band electronic hybrid
* "Beebounce" from ''Jazzbeetle'' (2023) – [https://open.spotify.com/track/4PzANNtxXsNEsdApnYKgHK Spotify] | [https://xotla.bandcamp.com/track/beebounce-43edo Bandcamp] | [https://youtu.be/EZIg5fojFfE YouTube] – jazzy big band electronic hybrid
== Instruments ==
*[[Lumatone mapping for 43edo]]
*[[Skip fretting system 43 2 9]]
=== Keyboards ===
A possible isomorphic keyboard layout for 43edo:
[[File:Fifth Comma Meantone Keyboard Layout.svg|800px|none|thumb]]
== Notes ==
<references group="note" />


== References ==
== References ==
Retrieved from "https://en.xen.wiki/w/43edo"