84edo: Difference between revisions
→Theory: rework |
Re-format the interval table |
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84edo is a [[largely composite]] number. Since 84 factors as {{factorization|84}}, 84edo has subset edos {{EDOs| 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 }}. Being a small multiple of 12, 84et tempers out the [[Pythagorean comma]], thus supporting the 1/12-octave temperament [[compton]]. Being a small multiple of 28, it tempers out the [[oquatonic|oquatonic comma]], which maps 5/4 to 9\28. | 84edo is a [[largely composite]] number. Since 84 factors as {{factorization|84}}, 84edo has subset edos {{EDOs| 2, 3, 4, 6, 7, 12, 14, 21, 28, 42 }}. Being a small multiple of 12, 84et tempers out the [[Pythagorean comma]], thus supporting the 1/12-octave temperament [[compton]]. Being a small multiple of 28, it tempers out the [[oquatonic|oquatonic comma]], which maps 5/4 to 9\28. | ||
== | == Interval table == | ||
For this table, the notation of Orwell[9] from the [[4L 5s]] page is taken. Notes are denoted as LsLsLsLss = JKLMNOPQRJ, and raising and lowering by a chroma (L − s), 3 steps in this instance, is denoted by & "amp" and a "at" (the symbol "@" unlike in the 4L 5s page cannot be used because of technical details). | For this table, the notation of Orwell[9] from the [[4L 5s]] page is taken. Notes are denoted as LsLsLsLss = JKLMNOPQRJ, and raising and lowering by a chroma (L − s), 3 steps in this instance, is denoted by & "amp" and a "at" (the symbol "@" unlike in the 4L 5s page cannot be used because of technical details). | ||
{| class="wikitable" | {| class="wikitable" | ||
|+Table of 84edo intervals | |+Table of 84edo intervals | ||
! | ! # | ||
! | ! Cents | ||
! Approximate Ratios | |||
! colspan="3" | [[Ups and Downs Notation]] | ! colspan="3" | [[Ups and Downs Notation]] | ||
! colspan="3" | [[4L 5s|4L 5s Notation]] | ! colspan="3" | [[4L 5s|4L 5s Notation]] | ||
|- | |- | ||
| 0 | | 0 | ||
| 0.000 | | 0.000 | ||
| 1/1 | |||
| Perfect 1sn | | Perfect 1sn | ||
| P1 | | P1 | ||
| Line 32: | Line 33: | ||
| P1 | | P1 | ||
| J | | J | ||
|- | |- | ||
| 1 | | 1 | ||
| 14.286 | | 14.286 | ||
| | |||
| Up 1sn | | Up 1sn | ||
| ^1 | | ^1 | ||
| Line 42: | Line 43: | ||
| ^1 | | ^1 | ||
| J^ | | J^ | ||
|- | |- | ||
| 2 | | 2 | ||
| 28.571 | | 28.571 | ||
| | |||
| Dup 1sn | | Dup 1sn | ||
| ^^1 | | ^^1 | ||
| Line 52: | Line 53: | ||
| vA1 | | vA1 | ||
| Jv& | | Jv& | ||
|- | |- | ||
| 3 | | 3 | ||
| 42.857 | | 42.857 | ||
| | |||
| Trup 1sn | | Trup 1sn | ||
| ^^^1 | | ^^^1 | ||
| Line 62: | Line 63: | ||
| A1 | | A1 | ||
| J& | | J& | ||
|- | |- | ||
| 4 | | 4 | ||
| 57.143 | | 57.143 | ||
| | |||
| Trudminor 2nd | | Trudminor 2nd | ||
| vvvm2 | | vvvm2 | ||
| Line 72: | Line 73: | ||
| ^A1, vd2 | | ^A1, vd2 | ||
| J^&, Kvaa | | J^&, Kvaa | ||
|- | |- | ||
| 5 | | 5 | ||
| 71.429 | | 71.429 | ||
| | |||
| Dudminor 2nd | | Dudminor 2nd | ||
| vvm2 | | vvm2 | ||
| Line 82: | Line 83: | ||
| d2 | | d2 | ||
| Kaa | | Kaa | ||
|- | |- | ||
| 6 | | 6 | ||
| 85.714 | | 85.714 | ||
| | |||
| Downminor 2nd | | Downminor 2nd | ||
| vm2 | | vm2 | ||
| Line 92: | Line 93: | ||
| ^d2 | | ^d2 | ||
| K^aa | | K^aa | ||
|- | |- | ||
| 7 | | 7 | ||
| 100.000 | | 100.000 | ||
| | |||
| Minor 2nd | | Minor 2nd | ||
| m2 | | m2 | ||
| Line 102: | Line 103: | ||
| vm2 | | vm2 | ||
| Kva | | Kva | ||
|- | |- | ||
| 8 | | 8 | ||
| 114.286 | | 114.286 | ||
| | |||
| Upminor 2nd | | Upminor 2nd | ||
| ^m2 | | ^m2 | ||
| Line 112: | Line 113: | ||
| m2 | | m2 | ||
| Ka | | Ka | ||
|- | |- | ||
| 9 | | 9 | ||
| 128.571 | | 128.571 | ||
| | |||
| Dupminor 2nd | | Dupminor 2nd | ||
| ^^m2 | | ^^m2 | ||
| Line 122: | Line 123: | ||
| ^m2 | | ^m2 | ||
| K^a | | K^a | ||
|- | |- | ||
| 10 | | 10 | ||
| 142.857 | | 142.857 | ||
| | |||
| Trupminor 2nd | | Trupminor 2nd | ||
| ^^^m2 | | ^^^m2 | ||
| Line 132: | Line 133: | ||
| vM2 | | vM2 | ||
| Kv | | Kv | ||
|- | |- | ||
| 11 | | 11 | ||
| 157.143 | | 157.143 | ||
| | |||
| Trudmajor 2nd | | Trudmajor 2nd | ||
| vvvM2 | | vvvM2 | ||
| Line 142: | Line 143: | ||
| M2 | | M2 | ||
| K | | K | ||
|- | |- | ||
| 12 | | 12 | ||
| 171.429 | | 171.429 | ||
| | |||
| Dudmajor 2nd | | Dudmajor 2nd | ||
| vvM2 | | vvM2 | ||
| Line 152: | Line 153: | ||
| ^M2 | | ^M2 | ||
| K^ | | K^ | ||
|- | |- | ||
| 13 | | 13 | ||
| 185.714 | | 185.714 | ||
| | |||
| Downmajor 2nd | | Downmajor 2nd | ||
| vM2 | | vM2 | ||
| Line 162: | Line 163: | ||
| vA2 | | vA2 | ||
| Kv& | | Kv& | ||
|- | |- | ||
| 14 | | 14 | ||
| 200.000 | | 200.000 | ||
| | |||
| Major 2nd | | Major 2nd | ||
| M2 | | M2 | ||
| Line 172: | Line 173: | ||
| A2 | | A2 | ||
| K& | | K& | ||
|- | |- | ||
| 15 | | 15 | ||
| 214.286 | | 214.286 | ||
| | |||
| Upmajor 2nd | | Upmajor 2nd | ||
| ^M2 | | ^M2 | ||
| Line 182: | Line 183: | ||
| ^A2, vd3 | | ^A2, vd3 | ||
| K^&, Lva | | K^&, Lva | ||
|- | |- | ||
| 16 | | 16 | ||
| 228.571 | | 228.571 | ||
| | |||
| Dupmajor 2nd | | Dupmajor 2nd | ||
| ^^M2 | | ^^M2 | ||
| Line 192: | Line 193: | ||
| d3 | | d3 | ||
| La | | La | ||
|- | |- | ||
| 17 | | 17 | ||
| 242.857 | | 242.857 | ||
| | |||
| Trupmajor 2nd | | Trupmajor 2nd | ||
| ^^^M2 | | ^^^M2 | ||
| Line 202: | Line 203: | ||
| ^d3 | | ^d3 | ||
| L^a | | L^a | ||
|- | |- | ||
| 18 | | 18 | ||
| 257.143 | | 257.143 | ||
| | |||
| Trudminor 3rd | | Trudminor 3rd | ||
| vvvm3 | | vvvm3 | ||
| Line 212: | Line 213: | ||
| v3 | | v3 | ||
| Lv | | Lv | ||
|- | |- | ||
| 19 | | 19 | ||
| 271.429 | | 271.429 | ||
|[[7/6]] | |||
| Dudminor 3rd | | Dudminor 3rd | ||
| vvm2 | | vvm2 | ||
| Line 222: | Line 223: | ||
| P3 | | P3 | ||
| L | | L | ||
|- | |- | ||
| 20 | | 20 | ||
| 285.714 | | 285.714 | ||
| | |||
| Downminor 3rd | | Downminor 3rd | ||
| vm3 | | vm3 | ||
| Line 232: | Line 233: | ||
| ^3 | | ^3 | ||
| L^ | | L^ | ||
|- | |- | ||
| 21 | | 21 | ||
| 300.000 | | 300.000 | ||
| | |||
| Minor 3rd | | Minor 3rd | ||
| m3 | | m3 | ||
| Line 242: | Line 243: | ||
| vA3 | | vA3 | ||
| Lv& | | Lv& | ||
|- | |- | ||
| 22 | | 22 | ||
| 314.286 | | 314.286 | ||
| | |||
| Upminor 3rd | | Upminor 3rd | ||
| ^m3 | | ^m3 | ||
| Line 252: | Line 253: | ||
| A3 | | A3 | ||
| L& | | L& | ||
|- | |- | ||
| 23 | | 23 | ||
| 328.571 | | 328.571 | ||
| | |||
| Dupminor 3rd | | Dupminor 3rd | ||
| ^^m3 | | ^^m3 | ||
| Line 262: | Line 263: | ||
| ^A3, vd4 | | ^A3, vd4 | ||
| L^&, Mvaa | | L^&, Mvaa | ||
|- | |- | ||
| 24 | | 24 | ||
| 342.857 | | 342.857 | ||
| | |||
| Trupminor 3rd | | Trupminor 3rd | ||
| ^^^m3 | | ^^^m3 | ||
| Line 272: | Line 273: | ||
| d4 | | d4 | ||
| Maa | | Maa | ||
|- | |- | ||
| 25 | | 25 | ||
| 357.143 | | 357.143 | ||
| | |||
| Trudmajor 3rd | | Trudmajor 3rd | ||
| vvvM3 | | vvvM3 | ||
| Line 282: | Line 283: | ||
| ^d4 | | ^d4 | ||
| M^aa | | M^aa | ||
|- | |- | ||
| 26 | | 26 | ||
| 371.429 | | 371.429 | ||
| | |||
| Dudmajor 3rd | | Dudmajor 3rd | ||
| vvM3 | | vvM3 | ||
| Line 292: | Line 293: | ||
| vm4 | | vm4 | ||
| Mva | | Mva | ||
|- | |- | ||
| 27 | | 27 | ||
| 385.714 | | 385.714 | ||
| | |||
| Downmajor 3rd | | Downmajor 3rd | ||
| vM3 | | vM3 | ||
| Line 302: | Line 303: | ||
| m4 | | m4 | ||
| Ma | | Ma | ||
|- | |- | ||
| 28 | | 28 | ||
| 400.000 | | 400.000 | ||
| | |||
| Major 3rd | | Major 3rd | ||
| M3 | | M3 | ||
| Line 312: | Line 313: | ||
| ^m4 | | ^m4 | ||
| M^a | | M^a | ||
|- | |- | ||
| 29 | | 29 | ||
| 414.286 | | 414.286 | ||
| | |||
| Upmajor 3rd | | Upmajor 3rd | ||
| ^M3 | | ^M3 | ||
| Line 322: | Line 323: | ||
| vM4 | | vM4 | ||
| Mv | | Mv | ||
|- | |- | ||
| 30 | | 30 | ||
| 428.571 | | 428.571 | ||
| | |||
| Dupmajor 3rd | | Dupmajor 3rd | ||
| ^^M3 | | ^^M3 | ||
| Line 332: | Line 333: | ||
| M4 | | M4 | ||
| M | | M | ||
|- | |- | ||
| 31 | | 31 | ||
| 442.857 | | 442.857 | ||
| | |||
| Trupmajor 3rd | | Trupmajor 3rd | ||
| ^^^M3 | | ^^^M3 | ||
| Line 342: | Line 343: | ||
| ^M4 | | ^M4 | ||
| M^ | | M^ | ||
|- | |- | ||
| 32 | | 32 | ||
| 457.143 | | 457.143 | ||
| | |||
| Trud 4th | | Trud 4th | ||
| vvv4 | | vvv4 | ||
| Line 352: | Line 353: | ||
| vA4 | | vA4 | ||
| Mv& | | Mv& | ||
|- | |- | ||
| 33 | | 33 | ||
| 471.429 | | 471.429 | ||
| | |||
| Dud 4th | | Dud 4th | ||
| vv4 | | vv4 | ||
| Line 362: | Line 363: | ||
| A4 | | A4 | ||
| M& | | M& | ||
|- | |- | ||
| 34 | | 34 | ||
| 485.714 | | 485.714 | ||
| | |||
| Down 4th | | Down 4th | ||
| v4 | | v4 | ||
| Line 372: | Line 373: | ||
| vm5 | | vm5 | ||
| Nva | | Nva | ||
|- | |- | ||
| 35 | | 35 | ||
| 500.000 | | 500.000 | ||
| | |||
| Perfect 4th | | Perfect 4th | ||
| P4 | | P4 | ||
| Line 382: | Line 383: | ||
| m5 | | m5 | ||
| Na | | Na | ||
|- | |- | ||
| 36 | | 36 | ||
| 514.286 | | 514.286 | ||
| | |||
| Up 4th | | Up 4th | ||
| ^4 | | ^4 | ||
| Line 392: | Line 393: | ||
| ^m5 | | ^m5 | ||
| N^a | | N^a | ||
|- | |- | ||
| 37 | | 37 | ||
| 528.571 | | 528.571 | ||
| | |||
| Dup 4th | | Dup 4th | ||
| ^^4 | | ^^4 | ||
| Line 402: | Line 403: | ||
| vM5 | | vM5 | ||
| Nv | | Nv | ||
|- | |- | ||
| 38 | | 38 | ||
| 542.857 | | 542.857 | ||
| | |||
| Trup 4th | | Trup 4th | ||
| ^^^4 | | ^^^4 | ||
| Line 412: | Line 413: | ||
| M5 | | M5 | ||
| N | | N | ||
|- | |- | ||
| 39 | | 39 | ||
| 557.143 | | 557.143 | ||
| | |||
| Trudaug 4th | | Trudaug 4th | ||
| vvvA4 | | vvvA4 | ||
| Line 422: | Line 423: | ||
| ^M5 | | ^M5 | ||
| N^ | | N^ | ||
|- | |- | ||
| 40 | | 40 | ||
| 571.429 | | 571.429 | ||
| | |||
| Dudaug 4th | | Dudaug 4th | ||
| vvA4 | | vvA4 | ||
| Line 432: | Line 433: | ||
| vA5 | | vA5 | ||
| Nv& | | Nv& | ||
|- | |- | ||
| 41 | | 41 | ||
| 585.714 | | 585.714 | ||
| | |||
| Downaug 4th | | Downaug 4th | ||
| vA4 | | vA4 | ||
| Line 442: | Line 443: | ||
| A5 | | A5 | ||
| N& | | N& | ||
|- | |- | ||
| 42 | | 42 | ||
| 600.000 | | 600.000 | ||
| | |||
| Aug 4th, Dim 5th | | Aug 4th, Dim 5th | ||
| A4, d5 | | A4, d5 | ||
| Line 452: | Line 453: | ||
| ^A5, vd6 | | ^A5, vd6 | ||
| N^&, Ovaa | | N^&, Ovaa | ||
|- | |- | ||
| 43 | | 43 | ||
| 614.286 | | 614.286 | ||
| | |||
| Updim 5th | | Updim 5th | ||
| ^d5 | | ^d5 | ||
| Line 462: | Line 463: | ||
| d6 | | d6 | ||
| Oaa | | Oaa | ||
|- | |- | ||
| 44 | | 44 | ||
| 628.571 | | 628.571 | ||
| | |||
| Dupdim 5th | | Dupdim 5th | ||
| ^^d5 | | ^^d5 | ||
| Line 472: | Line 473: | ||
| ^d6 | | ^d6 | ||
| O^aa | | O^aa | ||
|- | |- | ||
| 45 | | 45 | ||
| 642.857 | | 642.857 | ||
| | |||
| Trupdim 5th | | Trupdim 5th | ||
| ^^^d5 | | ^^^d5 | ||
| Line 482: | Line 483: | ||
| vm6 | | vm6 | ||
| Ova | | Ova | ||
|- | |- | ||
| 46 | | 46 | ||
| 657.143 | | 657.143 | ||
| | |||
| Trud 5th | | Trud 5th | ||
| vvv5 | | vvv5 | ||
| Line 492: | Line 493: | ||
| m6 | | m6 | ||
| Oa | | Oa | ||
|- | |- | ||
| 47 | | 47 | ||
| 671.429 | | 671.429 | ||
| | |||
| Dud 5th | | Dud 5th | ||
| vv5 | | vv5 | ||
| Line 502: | Line 503: | ||
| ^m6 | | ^m6 | ||
| O^a | | O^a | ||
|- | |- | ||
| 48 | | 48 | ||
| 685.714 | | 685.714 | ||
| | |||
| Down 5th | | Down 5th | ||
| v5 | | v5 | ||
| Line 512: | Line 513: | ||
| vM6 | | vM6 | ||
| Ov | | Ov | ||
|- | |- | ||
| 49 | | 49 | ||
| 700.000 | | 700.000 | ||
|[[3/2]] | |||
| Perfect 5th | | Perfect 5th | ||
| P5 | | P5 | ||
| Line 522: | Line 523: | ||
| M6 | | M6 | ||
| O | | O | ||
|- | |- | ||
| 50 | | 50 | ||
| 714.286 | | 714.286 | ||
| | |||
| Up 5th | | Up 5th | ||
| ^5 | | ^5 | ||
| Line 532: | Line 533: | ||
| ^M6 | | ^M6 | ||
| O^ | | O^ | ||
|- | |- | ||
| 51 | | 51 | ||
| 728.571 | | 728.571 | ||
| | |||
| Dup 5th | | Dup 5th | ||
| ^^5 | | ^^5 | ||
| Line 542: | Line 543: | ||
| d7 | | d7 | ||
| Paa | | Paa | ||
|- | |- | ||
| 52 | | 52 | ||
| 742.857 | | 742.857 | ||
| | |||
| Trup 5th | | Trup 5th | ||
| ^^^5 | | ^^^5 | ||
| Line 552: | Line 553: | ||
| A6 | | A6 | ||
| O& | | O& | ||
|- | |- | ||
| 53 | | 53 | ||
| 757.143 | | 757.143 | ||
| | |||
| Trudminor 6th | | Trudminor 6th | ||
| vvvm6 | | vvvm6 | ||
| Line 562: | Line 563: | ||
| vm7 | | vm7 | ||
| Pva | | Pva | ||
|- | |- | ||
| 54 | | 54 | ||
| 771.429 | | 771.429 | ||
| | |||
| Dudminor 6th | | Dudminor 6th | ||
| vvm6 | | vvm6 | ||
| Line 572: | Line 573: | ||
| m7 | | m7 | ||
| Pa | | Pa | ||
|- | |- | ||
| 55 | | 55 | ||
| 785.714 | | 785.714 | ||
| | |||
| Downminor 6th | | Downminor 6th | ||
| vm6 | | vm6 | ||
| Line 582: | Line 583: | ||
| ^m7 | | ^m7 | ||
| P^a | | P^a | ||
|- | |- | ||
| 56 | | 56 | ||
| 800.000 | | 800.000 | ||
| | |||
| Minor 6th | | Minor 6th | ||
| m6 | | m6 | ||
| Line 592: | Line 593: | ||
| vM7 | | vM7 | ||
| Pv | | Pv | ||
|- | |- | ||
| 57 | | 57 | ||
| 814.286 | | 814.286 | ||
|[[5/3]] | |||
| Upminor 6th | | Upminor 6th | ||
| ^m6 | | ^m6 | ||
| Line 602: | Line 603: | ||
| M7 | | M7 | ||
| P | | P | ||
|- | |- | ||
| 58 | | 58 | ||
| 828.571 | | 828.571 | ||
| | |||
| Dupminor 6th | | Dupminor 6th | ||
| ^^m6 | | ^^m6 | ||
| Line 612: | Line 613: | ||
| ^M7 | | ^M7 | ||
| P^ | | P^ | ||
|- | |- | ||
| 59 | | 59 | ||
| 842.857 | | 842.857 | ||
| | |||
| Trupminor 6th | | Trupminor 6th | ||
| ^^^m6 | | ^^^m6 | ||
| Line 622: | Line 623: | ||
| vA7 | | vA7 | ||
| Pv& | | Pv& | ||
|- | |- | ||
| 60 | | 60 | ||
| 857.143 | | 857.143 | ||
|[[105/64]] | |||
| Trudmajor 6th | | Trudmajor 6th | ||
| vvvM6 | | vvvM6 | ||
| Line 632: | Line 633: | ||
| A7 | | A7 | ||
| P& | | P& | ||
|- | |- | ||
| 61 | | 61 | ||
| 871.429 | | 871.429 | ||
| | |||
| Dudmajor 6th | | Dudmajor 6th | ||
| vvM6 | | vvM6 | ||
| Line 642: | Line 643: | ||
| ^A7, vd8 | | ^A7, vd8 | ||
| P^&, Qvaa | | P^&, Qvaa | ||
|- | |- | ||
| 62 | | 62 | ||
| 885.714 | | 885.714 | ||
| | |||
| Downmajor 6th | | Downmajor 6th | ||
| vM6 | | vM6 | ||
| Line 652: | Line 653: | ||
| d8 | | d8 | ||
| Qaa | | Qaa | ||
|- | |- | ||
| 63 | | 63 | ||
| 900.000 | | 900.000 | ||
| | |||
| Major 6th | | Major 6th | ||
| M6 | | M6 | ||
| Line 662: | Line 663: | ||
| ^d8 | | ^d8 | ||
| Q^aa | | Q^aa | ||
|- | |- | ||
| 64 | | 64 | ||
| 914.286 | | 914.286 | ||
| | |||
| Upmajor 6th | | Upmajor 6th | ||
| ^M6 | | ^M6 | ||
| Line 672: | Line 673: | ||
| v8 | | v8 | ||
| Qva | | Qva | ||
|- | |- | ||
| 65 | | 65 | ||
| 928.571 | | 928.571 | ||
| | |||
| Dupmajor 6th | | Dupmajor 6th | ||
| ^^M6 | | ^^M6 | ||
| Line 682: | Line 683: | ||
| P8 | | P8 | ||
| Qa | | Qa | ||
|- | |- | ||
| 66 | | 66 | ||
| 942.857 | | 942.857 | ||
| | |||
| Trupmajor 6th | | Trupmajor 6th | ||
| ^^^M6 | | ^^^M6 | ||
| Line 692: | Line 693: | ||
| ^8 | | ^8 | ||
| Q^a | | Q^a | ||
|- | |- | ||
| 67 | | 67 | ||
| 957.143 | | 957.143 | ||
| | |||
| Trudminor 7th | | Trudminor 7th | ||
| vvvm7 | | vvvm7 | ||
| Line 702: | Line 703: | ||
| vA8 | | vA8 | ||
| Qv | | Qv | ||
|- | |- | ||
| 68 | | 68 | ||
| 971.429 | | 971.429 | ||
| | |||
| Dudminor 7th | | Dudminor 7th | ||
| vvm7 | | vvm7 | ||
| Line 712: | Line 713: | ||
| A8 | | A8 | ||
| Q | | Q | ||
|- | |- | ||
| 69 | | 69 | ||
| 985.714 | | 985.714 | ||
| | |||
| Downminor 7th | | Downminor 7th | ||
| vm7 | | vm7 | ||
| Line 722: | Line 723: | ||
| ^A8, vd9 | | ^A8, vd9 | ||
| Q^, Rvaa | | Q^, Rvaa | ||
|- | |- | ||
| 70 | | 70 | ||
| 1000.000 | | 1000.000 | ||
| | |||
| Minor 7th | | Minor 7th | ||
| m7 | | m7 | ||
| Line 732: | Line 733: | ||
| d9 | | d9 | ||
| Raa | | Raa | ||
|- | |- | ||
| 71 | | 71 | ||
| 1014.286 | | 1014.286 | ||
| | |||
| Upminor 7th | | Upminor 7th | ||
| ^m7 | | ^m7 | ||
| Line 742: | Line 743: | ||
| ^d9 | | ^d9 | ||
| R^aa | | R^aa | ||
|- | |- | ||
| 72 | | 72 | ||
| 1028.571 | | 1028.571 | ||
| | |||
| Dupminor 7th | | Dupminor 7th | ||
| ^^m7 | | ^^m7 | ||
| Line 752: | Line 753: | ||
| vm9 | | vm9 | ||
| Rva | | Rva | ||
|- | |- | ||
| 73 | | 73 | ||
| 1042.857 | | 1042.857 | ||
| | |||
| Trupminor 7th | | Trupminor 7th | ||
| ^^^m7 | | ^^^m7 | ||
| Line 762: | Line 763: | ||
| m9 | | m9 | ||
| Ra | | Ra | ||
|- | |- | ||
| 74 | | 74 | ||
| 1057.143 | | 1057.143 | ||
| | |||
| Trudmajor 7th | | Trudmajor 7th | ||
| vvvM7 | | vvvM7 | ||
| Line 772: | Line 773: | ||
| ^m9 | | ^m9 | ||
| R^a | | R^a | ||
|- | |- | ||
| 75 | | 75 | ||
| 1071.429 | | 1071.429 | ||
| | |||
| Dudmajor 7th | | Dudmajor 7th | ||
| vvM7 | | vvM7 | ||
| Line 782: | Line 783: | ||
| vM9 | | vM9 | ||
| Rv | | Rv | ||
|- | |- | ||
| 76 | | 76 | ||
| 1085.714 | | 1085.714 | ||
| | |||
| Downmajor 7th | | Downmajor 7th | ||
| vM7 | | vM7 | ||
| Line 792: | Line 793: | ||
| M9 | | M9 | ||
| R | | R | ||
|- | |- | ||
| 77 | | 77 | ||
| 1100.000 | | 1100.000 | ||
| | |||
| Major 7th | | Major 7th | ||
| M7 | | M7 | ||
| Line 802: | Line 803: | ||
| ^M9 | | ^M9 | ||
| R^ | | R^ | ||
|- | |- | ||
|- | |- | ||
| 78 | | 78 | ||
| 1114.286 | | 1114.286 | ||
| | |||
| Upmajor 7th | | Upmajor 7th | ||
| ^M7 | | ^M7 | ||
| Line 813: | Line 814: | ||
| vA9 | | vA9 | ||
| Rv& | | Rv& | ||
|- | |- | ||
| 79 | | 79 | ||
| 1128.571 | | 1128.571 | ||
| | |||
| Dupmajor 7th | | Dupmajor 7th | ||
| ^^M7 | | ^^M7 | ||
| Line 823: | Line 824: | ||
| A9 | | A9 | ||
| R& | | R& | ||
|- | |- | ||
| 80 | | 80 | ||
| 1142.857 | | 1142.857 | ||
| | |||
| Trupmajor 7th | | Trupmajor 7th | ||
| ^^^M7 | | ^^^M7 | ||
| Line 833: | Line 834: | ||
| ^A9, vd10 | | ^A9, vd10 | ||
| R^&, Jva | | R^&, Jva | ||
|- | |- | ||
| 81 | | 81 | ||
| 1157.143 | | 1157.143 | ||
| | |||
| Trud 8ve | | Trud 8ve | ||
| vvv8 | | vvv8 | ||
| Line 843: | Line 844: | ||
| d10 | | d10 | ||
| Ja | | Ja | ||
|- | |- | ||
| 82 | | 82 | ||
| 1171.429 | | 1171.429 | ||
| | |||
| Dud 8ve | | Dud 8ve | ||
| vv8 | | vv8 | ||
| Line 853: | Line 854: | ||
| ^d10 | | ^d10 | ||
| J^a | | J^a | ||
|- | |- | ||
| 83 | | 83 | ||
| 1185.714 | | 1185.714 | ||
| Down | | | ||
| Down 8ve | |||
| v8 | | v8 | ||
| vD | | vD | ||
| Line 863: | Line 864: | ||
| v10 | | v10 | ||
| Jv | | Jv | ||
|- | |- | ||
| 84 | | 84 | ||
| 1200.000 | | 1200.000 | ||
| [[2/1]] | |||
| Perfect 8ve | | Perfect 8ve | ||
| P8 | | P8 | ||
| Line 873: | Line 874: | ||
| P10 | | P10 | ||
| J | | J | ||
|- | |- | ||
|} | |} | ||
Revision as of 09:00, 21 June 2024
| ← 83edo | 84edo | 85edo → |
Theory
84edo is where the orwell temperament takes its name from, since the generator of 7/6 is equal to 19 steps of the edo, referencing the book 1984. Orwell in 84edo comes in two varieties – the 84e val ⟨84 133 195 236 290], supporting the original orwell, and its patent val ⟨84 133 195 236 291] supporting newspeak. 84edo orwell offers mosses of size 9, 13, 22, and 31, of which the 31-note scale is the maximal evenness scale.
In the 13-limit it is the optimal patent val for the rank-5 temperament tempering out 144/143.
Prime harmonics
| Harmonic | 2 | 3 | 5 | 7 | 11 | 13 | 17 | 19 | 23 | 29 | 31 | 37 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.00 | -1.96 | -0.60 | +2.60 | +5.82 | +2.33 | -4.96 | +2.49 | +0.30 | -1.01 | -2.18 | +5.80 |
| Relative (%) | +0.0 | -13.7 | -4.2 | +18.2 | +40.8 | +16.3 | -34.7 | +17.4 | +2.1 | -7.0 | -15.2 | +40.6 | |
| Steps (reduced) |
84 (0) |
133 (49) |
195 (27) |
236 (68) |
291 (39) |
311 (59) |
343 (7) |
357 (21) |
380 (44) |
408 (72) |
416 (80) |
438 (18) | |
| Harmonic | 41 | 43 | 47 | 53 | 59 | 61 | 67 | 71 | 73 | 79 | 83 | 89 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Error | Absolute (¢) | -0.49 | +2.77 | +5.92 | -2.08 | -2.03 | -2.60 | +6.41 | +6.02 | +0.78 | +6.89 | +7.10 | +0.55 |
| Relative (%) | -3.4 | +19.4 | +41.5 | -14.5 | -14.2 | -18.2 | +44.9 | +42.1 | +5.5 | +48.2 | +49.7 | +3.8 | |
| Steps (reduced) |
450 (30) |
456 (36) |
467 (47) |
481 (61) |
494 (74) |
498 (78) |
510 (6) |
517 (13) |
520 (16) |
530 (26) |
536 (32) |
544 (40) | |
Subsets and supersets
84edo is a largely composite number. Since 84 factors as 22 × 3 × 7, 84edo has subset edos 2, 3, 4, 6, 7, 12, 14, 21, 28, 42. Being a small multiple of 12, 84et tempers out the Pythagorean comma, thus supporting the 1/12-octave temperament compton. Being a small multiple of 28, it tempers out the oquatonic comma, which maps 5/4 to 9\28.
Interval table
For this table, the notation of Orwell[9] from the 4L 5s page is taken. Notes are denoted as LsLsLsLss = JKLMNOPQRJ, and raising and lowering by a chroma (L − s), 3 steps in this instance, is denoted by & "amp" and a "at" (the symbol "@" unlike in the 4L 5s page cannot be used because of technical details).
| # | Cents | Approximate Ratios | Ups and Downs Notation | 4L 5s Notation | ||||
|---|---|---|---|---|---|---|---|---|
| 0 | 0.000 | 1/1 | Perfect 1sn | P1 | D | Perfect 1sn | P1 | J |
| 1 | 14.286 | Up 1sn | ^1 | ^D | Up 1sn | ^1 | J^ | |
| 2 | 28.571 | Dup 1sn | ^^1 | ^^D | Downaug 1sn | vA1 | Jv& | |
| 3 | 42.857 | Trup 1sn | ^^^1 | ^^^D | Aug 1sn | A1 | J& | |
| 4 | 57.143 | Trudminor 2nd | vvvm2 | vvvEb | Upaug 1sn, Downdim 2nd | ^A1, vd2 | J^&, Kvaa | |
| 5 | 71.429 | Dudminor 2nd | vvm2 | vvEb | Dim 2nd | d2 | Kaa | |
| 6 | 85.714 | Downminor 2nd | vm2 | vEb | Updim 2nd | ^d2 | K^aa | |
| 7 | 100.000 | Minor 2nd | m2 | Eb | Downminor 2nd | vm2 | Kva | |
| 8 | 114.286 | Upminor 2nd | ^m2 | ^Eb | Minor 2nd | m2 | Ka | |
| 9 | 128.571 | Dupminor 2nd | ^^m2 | ^^Eb | Upminor 2nd | ^m2 | K^a | |
| 10 | 142.857 | Trupminor 2nd | ^^^m2 | ^^^Eb | Downmajor 2nd | vM2 | Kv | |
| 11 | 157.143 | Trudmajor 2nd | vvvM2 | vvvE | Major 2nd | M2 | K | |
| 12 | 171.429 | Dudmajor 2nd | vvM2 | vvE | Upmajor 2nd | ^M2 | K^ | |
| 13 | 185.714 | Downmajor 2nd | vM2 | vE | Downaug 2nd | vA2 | Kv& | |
| 14 | 200.000 | Major 2nd | M2 | E | Aug 2nd | A2 | K& | |
| 15 | 214.286 | Upmajor 2nd | ^M2 | ^E | Upaug 2nd, Downdim 3rd | ^A2, vd3 | K^&, Lva | |
| 16 | 228.571 | Dupmajor 2nd | ^^M2 | ^^E | Dim 3rd | d3 | La | |
| 17 | 242.857 | Trupmajor 2nd | ^^^M2 | ^^^E | Updim 3rd | ^d3 | L^a | |
| 18 | 257.143 | Trudminor 3rd | vvvm3 | vvvF | Down 3rd | v3 | Lv | |
| 19 | 271.429 | 7/6 | Dudminor 3rd | vvm2 | vvF | Perfect 3rd | P3 | L |
| 20 | 285.714 | Downminor 3rd | vm3 | vF | Up 3rd | ^3 | L^ | |
| 21 | 300.000 | Minor 3rd | m3 | F | Downaug 3rd | vA3 | Lv& | |
| 22 | 314.286 | Upminor 3rd | ^m3 | ^F | Aug 3rd | A3 | L& | |
| 23 | 328.571 | Dupminor 3rd | ^^m3 | ^^F | Upaug 3rd, Downdim 4th | ^A3, vd4 | L^&, Mvaa | |
| 24 | 342.857 | Trupminor 3rd | ^^^m3 | ^^^F | Dim 4th | d4 | Maa | |
| 25 | 357.143 | Trudmajor 3rd | vvvM3 | vvvF# | Updim 4th | ^d4 | M^aa | |
| 26 | 371.429 | Dudmajor 3rd | vvM3 | vvF# | Downminor 4th | vm4 | Mva | |
| 27 | 385.714 | Downmajor 3rd | vM3 | vF# | Minor 4th | m4 | Ma | |
| 28 | 400.000 | Major 3rd | M3 | F# | Upminor 4th | ^m4 | M^a | |
| 29 | 414.286 | Upmajor 3rd | ^M3 | ^F# | Downmajor 4th | vM4 | Mv | |
| 30 | 428.571 | Dupmajor 3rd | ^^M3 | ^^F# | Major 4th | M4 | M | |
| 31 | 442.857 | Trupmajor 3rd | ^^^M3 | ^^^F# | Upmajor 4th | ^M4 | M^ | |
| 32 | 457.143 | Trud 4th | vvv4 | vvvG | Downaug 4th | vA4 | Mv& | |
| 33 | 471.429 | Dud 4th | vv4 | vvG | Aug 4th | A4 | M& | |
| 34 | 485.714 | Down 4th | v4 | vG | Downminor 5th | vm5 | Nva | |
| 35 | 500.000 | Perfect 4th | P4 | G | Minor 5th | m5 | Na | |
| 36 | 514.286 | Up 4th | ^4 | ^G | Upminor 5th | ^m5 | N^a | |
| 37 | 528.571 | Dup 4th | ^^4 | ^^G | Downmajor 5th | vM5 | Nv | |
| 38 | 542.857 | Trup 4th | ^^^4 | ^^^G | Major 5th | M5 | N | |
| 39 | 557.143 | Trudaug 4th | vvvA4 | vvvG# | Upmajor 5th | ^M5 | N^ | |
| 40 | 571.429 | Dudaug 4th | vvA4 | vvG# | Downaug 5th | vA5 | Nv& | |
| 41 | 585.714 | Downaug 4th | vA4 | vG# | Aug 5th | A5 | N& | |
| 42 | 600.000 | Aug 4th, Dim 5th | A4, d5 | G#, Ab | Upaug 5th, Downdim 6th | ^A5, vd6 | N^&, Ovaa | |
| 43 | 614.286 | Updim 5th | ^d5 | ^Ab | Dim 6th | d6 | Oaa | |
| 44 | 628.571 | Dupdim 5th | ^^d5 | ^^Ab | Updim 6th | ^d6 | O^aa | |
| 45 | 642.857 | Trupdim 5th | ^^^d5 | ^^^Ab | Downminor 6th | vm6 | Ova | |
| 46 | 657.143 | Trud 5th | vvv5 | vvvA | Minor 6th | m6 | Oa | |
| 47 | 671.429 | Dud 5th | vv5 | vvA | Upminor 6th | ^m6 | O^a | |
| 48 | 685.714 | Down 5th | v5 | vA | Downmajor 6th | vM6 | Ov | |
| 49 | 700.000 | 3/2 | Perfect 5th | P5 | A | Major 6th | M6 | O |
| 50 | 714.286 | Up 5th | ^5 | ^A | Upmajor 6th | ^M6 | O^ | |
| 51 | 728.571 | Dup 5th | ^^5 | ^^A | Dim 7th | d7 | Paa | |
| 52 | 742.857 | Trup 5th | ^^^5 | ^^^A | Aug 6th | A6 | O& | |
| 53 | 757.143 | Trudminor 6th | vvvm6 | vvvBb | Downminor 7th | vm7 | Pva | |
| 54 | 771.429 | Dudminor 6th | vvm6 | vvBb | Minor 7th | m7 | Pa | |
| 55 | 785.714 | Downminor 6th | vm6 | vBb | Upminor 7th | ^m7 | P^a | |
| 56 | 800.000 | Minor 6th | m6 | Bb | Downmajor 7th | vM7 | Pv | |
| 57 | 814.286 | 5/3 | Upminor 6th | ^m6 | ^Bb | Major 7th | M7 | P |
| 58 | 828.571 | Dupminor 6th | ^^m6 | ^^Bb | Upmajor 7th | ^M7 | P^ | |
| 59 | 842.857 | Trupminor 6th | ^^^m6 | ^^^Bb | Downaug 7th | vA7 | Pv& | |
| 60 | 857.143 | 105/64 | Trudmajor 6th | vvvM6 | vvvB | Aug 7th | A7 | P& |
| 61 | 871.429 | Dudmajor 6th | vvM6 | vvB | Upaug 7th, Downdim 8th | ^A7, vd8 | P^&, Qvaa | |
| 62 | 885.714 | Downmajor 6th | vM6 | vB | Dim 8th | d8 | Qaa | |
| 63 | 900.000 | Major 6th | M6 | B | Updim 8th | ^d8 | Q^aa | |
| 64 | 914.286 | Upmajor 6th | ^M6 | ^B | Down 8th | v8 | Qva | |
| 65 | 928.571 | Dupmajor 6th | ^^M6 | ^^B | Perfect 8th | P8 | Qa | |
| 66 | 942.857 | Trupmajor 6th | ^^^M6 | ^^^B | Up 8th | ^8 | Q^a | |
| 67 | 957.143 | Trudminor 7th | vvvm7 | vvvC | Downaug 8th | vA8 | Qv | |
| 68 | 971.429 | Dudminor 7th | vvm7 | vvC | Aug 8th | A8 | Q | |
| 69 | 985.714 | Downminor 7th | vm7 | vC | Upaug 8th, Downdim 9th | ^A8, vd9 | Q^, Rvaa | |
| 70 | 1000.000 | Minor 7th | m7 | C | Dim 9th | d9 | Raa | |
| 71 | 1014.286 | Upminor 7th | ^m7 | ^C | Updim 9th | ^d9 | R^aa | |
| 72 | 1028.571 | Dupminor 7th | ^^m7 | ^^C | Downminor 9th | vm9 | Rva | |
| 73 | 1042.857 | Trupminor 7th | ^^^m7 | ^^^C | Minor 9th | m9 | Ra | |
| 74 | 1057.143 | Trudmajor 7th | vvvM7 | vvvC# | Upminor 9th | ^m9 | R^a | |
| 75 | 1071.429 | Dudmajor 7th | vvM7 | vvC# | Downmajor 9th | vM9 | Rv | |
| 76 | 1085.714 | Downmajor 7th | vM7 | vC# | Major 9th | M9 | R | |
| 77 | 1100.000 | Major 7th | M7 | C# | Upmajor 9th | ^M9 | R^ | |
| 78 | 1114.286 | Upmajor 7th | ^M7 | ^C# | Downaug 9th | vA9 | Rv& | |
| 79 | 1128.571 | Dupmajor 7th | ^^M7 | ^^C# | Aug 9th | A9 | R& | |
| 80 | 1142.857 | Trupmajor 7th | ^^^M7 | ^^^C# | Upaug 9th, Downdim 10th | ^A9, vd10 | R^&, Jva | |
| 81 | 1157.143 | Trud 8ve | vvv8 | vvvD | Dim 10th | d10 | Ja | |
| 82 | 1171.429 | Dud 8ve | vv8 | vvD | Updim 10th | ^d10 | J^a | |
| 83 | 1185.714 | Down 8ve | v8 | vD | Down 10th | v10 | Jv | |
| 84 | 1200.000 | 2/1 | Perfect 8ve | P8 | D | Perfect 10th | P10 | J |
Regular temperament properties
| Subgroup | Comma List | Mapping | Optimal 8ve Stretch (¢) |
Tuning Error | |
|---|---|---|---|---|---|
| Absolute (¢) | Relative (%) | ||||
| 2.3.5 | 78732/78125, 531441/524288 | ⟨84 133 195] | +0.498 | 0.531 | 3.72 |
| 2.3.5.7 | 225/224, 1728/1715, 78732/78125 | ⟨84 133 195 236] | +0.141 | 0.769 | 5.39 |
| 2.3.5.7.11 | 225/224, 441/440, 1344/1331, 1728/1715 | ⟨84 133 195 236 291] (84) | -0.225 | 1.003 | 7.02 |
| 2.3.5.7.11 | 99/98, 121/120, 176/175, 78732/78125 | ⟨84 133 195 236 290] (84e) | +0.601 | 1.151 | 8.05 |
Rank-2 temperaments
| Periods per 8ve |
Generator (Reduced) |
Cents (Reduced) |
Associated Ratio |
Temperaments |
|---|---|---|---|---|
| 1 | 19\84 | 271.43 | 7/6 | Orwell (84e) |
| Newspeak (84p) | ||||
| 1 | 25\84 | 357.14 | 768/625 | Dodifo |
| 1 | 27\84 | 385.71 | 5/4 | Mutt |
| 1 | 31\84 | 442.86 | 125/81 | Sensei |
| 1 | 41\84 | 585.71 | 7/5 | Merman |
| 2 | 5\84 | 71.43 | 25/24 | Narayana |
| 2 | 11\84 | 157.14 | 35/32 | Bison |
| 2 | 13\84 | 185.71 | 10/9 | Secant |
| 3 | 11\84 | 157.14 | 35/32 | Nessafof |
| 7 | 5\84 | 500.00 (14.29) |
4/3 (81/80) |
Absurdity |
| 12 | 27\84 (1\84) |
385.71 (14.29) |
5/4 (126/125) |
Compton |
| 21 | 41\84 (1\84) |
585.71 (14.29) |
91875/65536 (126/125) |
Akjayland |
| 28 | 49\84 (1\84) |
500.00 (14.29) |
4/3 (105/104) |
Oquatonic |
Scales
MOS
Brightest mode is listed.
Other
Music
- Ten for chamber ensemble (1991) Ives Ensemble recording (YouTube) [dead link]
- Two4 for violin and piano or shō (1991) Harr & Miyata recording (YouTube)
- Two5 for tenor trombone and piano (1991) Fulkerson & Denyer recording (YouTube)
- Two6 for violin and piano (1992) Haar & Snijders recording (YouTube)
- Requiem in Gb 1/7 Orwell (2023)
- Undiminished (2023)