86edo: Difference between revisions
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{{UserTag|g_|Ground|7766ff|86 is an edo whose use is generally confined to my approach, and is up there with 74edo as one of my default large edos. It's a [[Straddle primes|straddle]] edo good for [[Monarch|Interarch]] and my [[Ground's composition theory#Quartertone_composition|quartertone theory | {{UserTag|g_|Ground|7766ff|86 is an edo whose use is generally confined to my approach, and is up there with 74edo as one of my default large edos. It's a [[Straddle primes|straddle]] edo good for [[Monarch|Interarch]] and my [[Ground's composition theory#Quartertone_composition|quartertone theory]]. Alongside being double the already respectable 43edo, this makes it my favorite edo at the time of writing.}}{{UserTag|SS|Vector|cebaff|86edo may be seen as a system introducing neutral intervals to 43edo}} | ||
{| class="wikitable" | {| class="wikitable" | ||
|+Intervals in selected erac subroups in 86edo (x3 for <3.>3) | |+Intervals in selected erac subroups in 86edo (x3 for <3.>3) | ||
| Line 443: | Line 443: | ||
|} | |} | ||
22&86bde is very good at generating 86edo Archy pental blackdye and its related quasi-Porcupine. It's similar to Comic temperament. See [[Straddle cluster temperaments#Quartertone]]. | 22&86bde is very good at generating 86edo Archy pental blackdye and its related quasi-Porcupine. It's similar to Comic temperament. See [[Straddle cluster temperaments#Quartertone]]. 3sA Aeolian and additional italicized notes of 1sRM Dorian are highlighted. | ||
{| class="wikitable" | {| class="wikitable" | ||
|+11-limit 22&86bde, 81-odd-limit | |+11-limit 22&86bde, 81-odd-limit | ||
| Line 548: | Line 548: | ||
|5 | |5 | ||
|279.1 | |279.1 | ||
|879.1 | | class="thl" |''879.1'' | ||
|128/77 5/3 18/11 33/28 81/70 | |128/77 5/3 18/11 33/28 81/70 | ||
|- | |- | ||
|4 | |4 | ||
|223.3 | | class="thl" |223.3 | ||
|823.3 | |823.3 | ||
|8/7 9/8 35/22 55/48 | |8/7 9/8 35/22 55/48 | ||
|- | |- | ||
|3 | |3 | ||
|167.4 | | class="thl" |''167.4'' | ||
|767.4 | |767.4 | ||
|12/11 10/9 11/7 54/35 35/32 | |12/11 10/9 11/7 54/35 35/32 | ||
| Line 563: | Line 563: | ||
|2 | |2 | ||
|111.6 | |111.6 | ||
|711.6 | | class="thl" |711.6 | ||
|32/21 3/2 35/33 55/36 81/55 | |32/21 3/2 35/33 55/36 81/55 | ||
|- | |- | ||
|1 | |1 | ||
|55.8 | | class="thl" |55.8 | ||
|655.8 | |655.8 | ||
|16/11 40/27 36/35 22/21 33/32 35/24 63/44 81/80 | |16/11 40/27 36/35 22/21 33/32 35/24 63/44 81/80 | ||
|- | |- | ||
|0 | |0 | ||
|0.0 | | class="thl" |0.0 | ||
|600.0 | |600.0 | ||
|1/1 64/63 108/55 55/54 63/32 | |1/1 64/63 108/55 55/54 63/32 | ||
|- | |- | ||
| -1 | | -1 | ||
|544.2 | | class="thl" |544.2 | ||
|1144.2 | |1144.2 | ||
|64/33 48/35 160/81 11/8 88/63 21/11 27/20 35/18 | |64/33 48/35 160/81 11/8 88/63 21/11 27/20 35/18 | ||
|- | |- | ||
| -2 | | -2 | ||
|488.4 | | class="thl" |488.4 | ||
|1088.4 | |1088.4 | ||
|4/3 72/55 21/16 66/35 110/81 | |4/3 72/55 21/16 66/35 110/81 | ||
| Line 588: | Line 588: | ||
| -3 | | -3 | ||
|432.6 | |432.6 | ||
|1032.6 | | class="thl" |1032.6 | ||
|64/35 14/11 9/5 11/6 35/27 | |64/35 14/11 9/5 11/6 35/27 | ||
|- | |- | ||
| -4 | | -4 | ||
|376.7 | |376.7 | ||
|976.7 | | class="thl" |976.7 | ||
|16/9 96/55 7/4 44/35 | |16/9 96/55 7/4 44/35 | ||
|- | |- | ||
| -5 | | -5 | ||
|320.9 | | class="thl" |320.9 | ||
|920.9 | |920.9 | ||
|6/5 56/33 11/9 140/81 77/64 | |6/5 56/33 11/9 140/81 77/64 | ||
| Line 608: | Line 608: | ||
| -7 | | -7 | ||
|209.3 | |209.3 | ||
|809.3 | | class="thl" |809.3 | ||
|8/5 44/27 49/44 63/40 77/48 | |8/5 44/27 49/44 63/40 77/48 | ||
|- | |- | ||
Latest revision as of 04:39, 6 August 2026
g_
86 is an edo whose use is generally confined to my approach, and is up there with 74edo as one of my default large edos. It's a straddle edo good for Interarch and my quartertone theory. Alongside being double the already respectable 43edo, this makes it my favorite edo at the time of writing.
SS
86edo may be seen as a system introducing neutral intervals to 43edo
| Step | Cents | 2.x3.x5.x7.x11 81-odd-limit, max 3 eracs |
2.x3.x5.x7.x11.13.x17.x19.23.29.31.37 37-odd-limit, max 1 erac |
|---|---|---|---|
| 86 | 1200.000 | 2/1 | 2/1 |
| 85 | 1186.047 | >>>96/49 >>>160/81 >>49/25 >63/32 | |
| 84 | 1172.093 | >96/49 >160/81 49/25 <63/32 | |
| 83 | 1158.140 | >>>48/25 <96/49 <160/81 >>27/14 >>35/18 <<49/25 <<<63/32 | 72/37 >68/35 >33/17 >37/19 |
| 82 | 1144.186 | >48/25 <<<96/49 <<<160/81 27/14 35/18 | 64/33 >48/25 >56/29 60/31 <68/35 27/14 29/15 31/16 <33/17 35/18 <37/19 |
| 81 | 1130.233 | <48/25 >>>40/21 <<27/14 <<35/18 | <48/25 <56/29 >44/23 >52/27 >21/11 >23/12 25/13 |
| 80 | 1116.279 | <<<48/25 >40/21 | >40/21 >36/19 <44/23 <52/27 19/10 <21/11 <23/12 |
| 79 | 1102.326 | <40/21 >>>28/15 >>15/8 | >32/17 <40/21 <36/19 >17/9 66/35 70/37 |
| 78 | 1088.372 | <<<40/21 >28/15 15/8 | <32/17 >28/15 15/8 <17/9 >54/29 58/31 62/33 |
| 77 | 1074.419 | <28/15 <<15/8 >>>50/27 >>>90/49 | >24/13 <28/15 >13/7 <54/29 >37/20 |
| 76 | 1060.465 | >>64/35 <<<28/15 >50/27 >90/49 | <24/13 <13/7 >68/37 46/25 >50/27 >35/19 <37/20 |
| 75 | 1046.512 | 64/35 >>>9/5 <50/27 <90/49 >>>49/27 | 64/35 11/6 <68/37 42/23 <50/27 >31/17 <35/19 |
| 74 | 1032.558 | <<64/35 >9/5 <<<50/27 <<<90/49 >49/27 | 20/11 >56/31 >9/5 >38/21 29/16 <31/17 |
| 73 | 1018.605 | <9/5 >>>25/14 <49/27 | <56/31 <9/5 <38/21 |
| 72 | 1004.651 | >>16/9 <<<9/5 >25/14 <<<49/27 | 52/29 34/19 >25/14 66/37 |
| 71 | 990.698 | 16/9 <25/14 | 16/9 >44/25 >30/17 23/13 <25/14 62/35 |
| 70 | 976.744 | <<16/9 >7/4 <<<25/14 | >7/4 <44/25 <30/17 >54/31 58/33 37/21 |
| 69 | 962.791 | <7/4 | >40/23 <7/4 <54/31 >33/19 |
| 68 | 948.837 | >>>128/75 >>12/7 >>140/81 | 64/37 <40/23 26/15 19/11 <33/19 |
| 67 | 934.884 | >128/75 12/7 >>>27/16 140/81 | 12/7 50/29 >29/17 31/18 |
| 66 | 920.930 | <128/75 <<12/7 >>42/25 >27/16 <<140/81 | >56/33 >22/13 17/10 >46/27 >27/16 <29/17 |
| 65 | 906.977 | <<<128/75 42/25 <27/16 | >32/19 <56/33 <22/13 42/25 <46/27 <27/16 >37/22 |
| 64 | 893.023 | >>5/3 <<42/25 <<<27/16 >>81/49 | <32/19 52/31 62/37 <37/22 |
| 63 | 879.070 | 5/3 81/49 | >48/29 5/3 >38/23 58/35 >33/20 |
| 62 | 865.116 | <<5/3 >>>80/49 >>49/30 >>81/50 <<81/49 | <48/29 28/17 >18/11 <38/23 >23/14 <33/20 |
| 61 | 851.163 | >80/49 49/30 81/50 | <18/11 <23/14 >31/19 |
| 60 | 837.209 | <80/49 >>45/28 <<49/30 <<81/50 | 44/27 13/8 60/37 >34/21 21/13 <31/19 |
| 59 | 823.256 | >8/5 <<<80/49 45/28 | >8/5 <34/21 50/31 29/18 37/23 |
| 58 | 809.302 | <8/5 >>>100/63 <<45/28 >>63/40 | <8/5 27/17 >35/22 |
| 57 | 795.349 | >>128/81 >100/63 63/40 | >30/19 19/12 46/29 <35/22 |
| 56 | 781.395 | 128/81 >>>14/9 >>25/16 <100/63 >>>54/35 <<63/40 | 36/23 11/7 52/33 <30/19 58/37 |
| 55 | 767.442 | <<128/81 >14/9 25/16 <<<100/63 >54/35 | >48/31 >14/9 25/16 >54/35 >31/20 |
| 54 | 753.488 | <14/9 <<25/16 <54/35 >>49/32 >>>75/49 | <48/31 >20/13 <14/9 17/11 <54/35 <31/20 >37/24 |
| 53 | 739.535 | >>32/21 <<<14/9 <<<54/35 49/32 >75/49 | <20/13 >26/17 >38/25 23/15 >29/19 <37/24 |
| 52 | 725.581 | 32/21 <<49/32 <75/49 | 32/21 >56/37 >44/29 <26/17 <38/25 <29/19 35/23 |
| 51 | 711.628 | <<32/21 >3/2 >>112/75 <<<75/49 | >3/2 <56/37 <44/29 50/33 |
| 50 | 697.674 | <3/2 112/75 | <3/2 |
| 49 | 683.721 | >>40/27 <<112/75 >>72/49 | 52/35 >34/23 46/31 37/25 |
| 48 | 669.767 | 40/27 72/49 >>>35/24 >>>81/56 | 40/27 28/19 >22/15 <34/23 >19/13 >25/17 >54/37 31/21 |
| 47 | 655.814 | <<40/27 >>36/25 <<72/49 >35/24 >81/56 | >16/11 <22/15 <19/13 <25/17 <54/37 >29/20 >35/24 |
| 46 | 641.860 | 36/25 <35/24 <81/56 | <16/11 36/25 42/29 <29/20 <35/24 |
| 45 | 627.907 | >>>64/45 >>10/7 <<36/25 <<<35/24 <<<81/56 | 13/9 23/16 33/23 |
| 44 | 613.953 | >64/45 10/7 >>>45/32 | 10/7 >44/31 27/19 37/26 |
| 43 | 600.000 | <64/45 <<10/7 >>7/5 >45/32 | 24/17 <44/31 17/12 >31/22 |
| 42 | 586.047 | <<<64/45 7/5 <45/32 | 7/5 52/37 38/27 <31/22 |
| 41 | 572.093 | >>>48/35 <<7/5 >>>112/81 >>25/18 <<<45/32 | 32/23 18/13 46/33 |
| 40 | 558.140 | >48/35 >112/81 25/18 | >48/35 >40/29 >11/8 25/18 29/21 |
| 39 | 544.186 | <48/35 <112/81 <<25/18 >>27/20 >>49/36 | <48/35 <40/29 <11/8 >26/19 >15/11 >34/25 >37/27 |
| 38 | 530.233 | <<<48/35 <<<112/81 27/20 49/36 | <26/19 <15/11 <34/25 19/14 42/31 >23/17 27/20 <37/27 |
| 37 | 516.279 | <<27/20 <<49/36 >>75/56 | <23/17 50/37 31/23 35/26 |
| 36 | 502.326 | >4/3 75/56 | >4/3 |
| 35 | 488.372 | <4/3 >>21/16 >>>98/75 <<75/56 | <4/3 >29/22 33/25 >37/28 |
| 34 | 474.419 | >>64/49 21/16 >98/75 | >17/13 >38/29 21/16 46/35 >25/19 <29/22 <37/28 |
| 33 | 460.465 | 64/49 >>>9/7 <<21/16 >>>35/27 <98/75 | >48/37 >13/10 30/23 <17/13 <38/29 <25/19 |
| 32 | 446.512 | >>32/25 <<64/49 >9/7 >35/27 <<<98/75 | <48/37 >40/31 >9/7 22/17 <13/10 >31/24 >35/27 |
| 31 | 432.558 | 32/25 <9/7 <35/27 >>>63/50 >>81/64 | 32/25 <40/31 <9/7 <31/24 <35/27 |
| 30 | 418.605 | <<32/25 >>80/63 <<<9/7 <<<35/27 >63/50 81/64 | 14/11 >19/15 23/18 33/26 37/29 |
| 29 | 404.651 | 80/63 <63/50 <<81/64 | 24/19 >44/35 <19/15 29/23 |
| 28 | 390.698 | >5/4 <<80/63 >>56/45 <<<63/50 | >5/4 <44/35 34/27 |
| 27 | 376.744 | <5/4 56/45 >>>49/40 | <5/4 36/29 >21/17 46/37 31/25 |
| 26 | 362.791 | <<56/45 >>60/49 >>100/81 >49/40 | 16/13 26/21 >38/31 <21/17 27/22 37/30 |
| 25 | 348.837 | 60/49 100/81 <49/40 | >28/23 >11/9 <38/31 |
| 24 | 334.884 | >>6/5 <<60/49 <<100/81 <<<49/40 >>98/81 | >40/33 <28/23 <11/9 17/14 >23/19 >29/24 |
| 23 | 320.930 | 6/5 98/81 | 6/5 <40/33 <23/19 <29/24 35/29 |
| 22 | 306.977 | >>>32/27 <<6/5 >>25/21 <<98/81 | >44/37 >19/16 31/26 37/31 |
| 21 | 293.023 | >32/27 25/21 >>>75/64 | >32/27 <44/37 >13/11 <19/16 25/21 >27/23 >33/28 |
| 20 | 279.070 | <32/27 >>7/6 <<25/21 >75/64 >>81/70 | <32/27 20/17 <13/11 >34/29 <27/23 <33/28 |
| 19 | 265.116 | <<<32/27 7/6 <75/64 81/70 | 7/6 36/31 <34/29 29/25 |
| 18 | 251.163 | <<7/6 <<<75/64 <<81/70 | 22/19 15/13 >38/33 >23/20 37/32 |
| 17 | 237.209 | >8/7 | >8/7 <38/33 <23/20 >31/27 |
| 16 | 223.256 | <8/7 >>>28/25 >>9/8 | <8/7 >17/15 42/37 >25/22 <31/27 33/29 |
| 15 | 209.302 | >28/25 9/8 | >28/25 9/8 26/23 <17/15 <25/22 35/31 |
| 14 | 195.349 | >>>10/9 <28/25 <<9/8 >>>54/49 | <28/25 19/17 29/26 37/33 |
| 13 | 181.395 | >10/9 <<<28/25 >54/49 | >10/9 >21/19 >31/28 |
| 12 | 167.442 | <10/9 >>>27/25 <54/49 >>35/32 >>>49/45 | 32/29 <10/9 11/10 >34/31 <21/19 <31/28 |
| 11 | 153.488 | <<<10/9 >27/25 <<<54/49 35/32 >49/45 | 12/11 <34/31 >38/35 23/21 >27/25 35/32 >37/34 |
| 10 | 139.535 | >>>15/14 <27/25 <<35/32 <49/45 | >40/37 >14/13 >13/12 <38/35 25/23 <27/25 <37/34 |
| 9 | 125.581 | >>16/15 >15/14 <<<27/25 <<<49/45 | <40/37 <14/13 <13/12 >15/14 >29/27 |
| 8 | 111.628 | 16/15 <15/14 >>>21/20 | 16/15 >18/17 <15/14 >17/16 <29/27 31/29 33/31 |
| 7 | 97.674 | <<16/15 <<<15/14 >21/20 | <18/17 <17/16 >19/18 >21/20 35/33 37/35 |
| 6 | 83.721 | <21/20 >>>25/24 | >24/23 20/19 >22/21 <19/18 <21/20 >23/22 >27/26 |
| 5 | 69.767 | >>28/27 >>36/35 <<<21/20 >25/24 | <24/23 <22/21 26/25 <23/22 >25/24 <27/26 >29/28 |
| 4 | 55.814 | 28/27 36/35 <25/24 >>>49/48 >>>81/80 | 32/31 28/27 36/35 30/29 >34/33 >38/37 <25/24 <29/28 31/30 33/32 >35/34 |
| 3 | 41.860 | >>>64/63 <<28/27 <<36/35 <<<25/24 >>50/49 >49/48 >81/80 | <34/33 <38/37 <35/34 37/36 |
| 2 | 27.907 | >64/63 50/49 <49/48 <81/80 | |
| 1 | 13.953 | <64/63 <<50/49 <<<49/48 <<<81/80 | |
| 0 | 0.000 | 1/1 <<<64/63 >>>63/64 | 1/1 |
22&86bde is very good at generating 86edo Archy pental blackdye and its related quasi-Porcupine. It's similar to Comic temperament. See Straddle cluster temperaments#Quartertone. 3sA Aeolian and additional italicized notes of 1sRM Dorian are highlighted.
| Gens | Pd. 1 | Pd. 2 | Interpretations |
|---|---|---|---|
| 24 | 139.5 | 739.5 | 75/49 |
| 23 | 83.7 | 683.7 | |
| 22 | 27.9 | 627.9 | 50/49 |
| 21 | 572.1 | 1172.1 | 150/77 |
| 20 | 516.3 | 1116.3 | 75/56 |
| 19 | 460.5 | 1060.5 | 100/77 90/49 |
| 18 | 404.7 | 1004.7 | 25/14 |
| 17 | 348.8 | 948.8 | 60/49 75/44 |
| 16 | 293.0 | 893.0 | 25/21 90/77 75/64 81/49 |
| 15 | 237.2 | 837.2 | 80/49 25/22 45/28 |
| 14 | 181.4 | 781.4 | 120/77 25/16 100/63 54/49 55/49 |
| 13 | 125.6 | 725.6 | 15/14 50/33 81/77 |
| 12 | 69.8 | 669.8 | 80/77 72/49 25/24 45/44 81/56 |
| 11 | 14.0 | 614.0 | 10/7 108/77 45/32 |
| 10 | 558.1 | 1158.1 | 96/49 15/11 25/18 27/14 55/28 |
| 9 | 502.3 | 1102.3 | 40/21 144/77 15/8 66/49 81/44 |
| 8 | 446.5 | 1046.5 | 64/49 20/11 9/7 50/27 55/42 81/64 |
| 7 | 390.7 | 990.7 | 96/77 5/4 80/63 88/49 27/22 |
| 6 | 334.9 | 934.9 | 12/7 40/33 100/81 27/16 55/32 110/63 |
| 5 | 279.1 | 879.1 | 128/77 5/3 18/11 33/28 81/70 |
| 4 | 223.3 | 823.3 | 8/7 9/8 35/22 55/48 |
| 3 | 167.4 | 767.4 | 12/11 10/9 11/7 54/35 35/32 |
| 2 | 111.6 | 711.6 | 32/21 3/2 35/33 55/36 81/55 |
| 1 | 55.8 | 655.8 | 16/11 40/27 36/35 22/21 33/32 35/24 63/44 81/80 |
| 0 | 0.0 | 600.0 | 1/1 64/63 108/55 55/54 63/32 |
| -1 | 544.2 | 1144.2 | 64/33 48/35 160/81 11/8 88/63 21/11 27/20 35/18 |
| -2 | 488.4 | 1088.4 | 4/3 72/55 21/16 66/35 110/81 |
| -3 | 432.6 | 1032.6 | 64/35 14/11 9/5 11/6 35/27 |
| -4 | 376.7 | 976.7 | 16/9 96/55 7/4 44/35 |
| -5 | 320.9 | 920.9 | 6/5 56/33 11/9 140/81 77/64 |
| -6 | 265.1 | 865.1 | 32/27 64/55 7/6 33/20 63/55 81/50 |
| -7 | 209.3 | 809.3 | 8/5 44/27 49/44 63/40 77/48 |
| -8 | 153.5 | 753.5 | 128/81 14/9 11/10 84/55 27/25 49/32 |
| -9 | 97.7 | 697.7 | 16/15 88/81 21/20 49/33 77/72 |
| -10 | 41.9 | 641.9 | 28/27 56/55 36/25 22/15 49/48 |
| -11 | 586.0 | 1186.0 | 64/45 7/5 77/54 |
| -12 | 530.2 | 1130.2 | 48/25 112/81 88/45 49/36 77/40 |
| -13 | 474.4 | 1074.4 | 28/15 33/25 154/81 |
| -14 | 418.6 | 1018.6 | 32/25 49/27 98/55 63/50 77/60 |
| -15 | 362.8 | 962.8 | 56/45 44/25 49/40 |
| -16 | 307.0 | 907.0 | 128/75 42/25 98/81 77/45 |
| -17 | 251.2 | 851.2 | 88/75 49/30 |
| -18 | 195.3 | 795.3 | 28/25 |
| -19 | 139.5 | 739.5 | 49/45 77/50 |
| -20 | 83.7 | 683.7 | 112/75 |
| -21 | 27.9 | 627.9 | 77/75 |
| -22 | 572.1 | 1172.1 | 49/25 |
| -23 | 516.3 | 1116.3 | |
| -24 | 460.5 | 1060.5 | 98/75 |
