User:Overthink/The 7-limit in 171edo: Difference between revisions
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An excellent system for approximating the 7-limit is [[171edo]]. The [[9-odd-limit]] [[tonality diamond]] is approximated with just over 0.4 cents of error, and all 7-limit intervals with odd limit up to 10,000,000 are consistent (first odd to cause inconsistencies is 13671875). 171edo is thus an excellent system for classifying intervals and commas simply and accurately. | An excellent system for approximating the 7-limit is [[171edo]]. The [[9-odd-limit]] [[tonality diamond]] is approximated with just over 0.4 cents of error, and all 7-limit intervals with odd limit up to 10,000,000 are consistent (first odd to cause inconsistencies is 13671875). 171edo is thus an excellent system for classifying intervals and commas simply and accurately. | ||
{{Harmonics in equal|171|columns=4|prec=5}} | {{Harmonics in equal|171|columns=4|prec=5}} | ||
{ | {| class="wikitable center-1 right-2 mw-collapsible mw-collapsed" | ||
| | |- | ||
| | ! Steps | ||
| | ! Cents | ||
| | ! Approximate ratios | ||
! [[Ups and downs notation]] | |||
|- | |||
| 0 | |||
| 0 | |||
| [[1/1]] | |||
| D | |||
|- | |||
| 1 | |||
| 7.02 | |||
| | |||
| ^D, ^<sup>4</sup>E♭♭ | |||
|- | |||
| 2 | |||
| 14.04 | |||
| | |||
| ^^D, ^<sup>5</sup>E♭♭ | |||
|- | |||
| 3 | |||
| 21.05 | |||
| | |||
| ^<sup>3</sup>D, ^<sup>6</sup>E♭♭ | |||
|- | |||
| 4 | |||
| 28.07 | |||
| | |||
| ^<sup>4</sup>D, ^<sup>7</sup>E♭♭ | |||
|- | |||
| 5 | |||
| 35.09 | |||
| [[49/48]], [[50/49]], [[51/50]] | |||
| ^<sup>5</sup>D, v<sup>8</sup>E♭ | |||
|- | |||
| 6 | |||
| 42.11 | |||
| [[41/40]], [[42/41]] | |||
| ^<sup>6</sup>D, v<sup>7</sup>E♭ | |||
|- | |||
| 7 | |||
| 49.12 | |||
| [[35/34]], [[36/35]] | |||
| ^<sup>7</sup>D, v<sup>6</sup>E♭ | |||
|- | |||
| 8 | |||
| 56.14 | |||
| [[31/30]], [[32/31]] | |||
| ^<sup>8</sup>D, v<sup>5</sup>E♭ | |||
|- | |||
| 9 | |||
| 63.16 | |||
| [[28/27]] | |||
| v<sup>7</sup>D♯, v<sup>4</sup>E♭ | |||
|- | |||
| 10 | |||
| 70.18 | |||
| [[25/24]], [[51/49]] | |||
| v<sup>6</sup>D♯, v<sup>3</sup>E♭ | |||
|- | |||
| 11 | |||
| 77.19 | |||
| [[23/22]] | |||
| v<sup>5</sup>D♯, vvE♭ | |||
|- | |||
| 12 | |||
| 84.21 | |||
| [[21/20]] | |||
| v<sup>4</sup>D♯, vE♭ | |||
|- | |||
| 13 | |||
| 91.23 | |||
| [[39/37]], [[58/55]] | |||
| v<sup>3</sup>D♯, E♭ | |||
|- | |||
| 14 | |||
| 98.25 | |||
| [[18/17]], [[55/52]] | |||
| vvD♯, ^E♭ | |||
|- | |||
| 15 | |||
| 105.26 | |||
| [[17/16]] | |||
| vD♯, ^^E♭ | |||
|- | |||
| 16 | |||
| 112.28 | |||
| [[16/15]] | |||
| D♯, ^<sup>3</sup>E♭ | |||
|- | |||
| 17 | |||
| 119.3 | |||
| [[15/14]] | |||
| ^D♯, ^<sup>4</sup>E♭ | |||
|- | |||
| 18 | |||
| 126.32 | |||
| [[43/40]] | |||
| ^^D♯, ^<sup>5</sup>E♭ | |||
|- | |||
| 19 | |||
| 133.33 | |||
| [[27/25]] | |||
| ^<sup>3</sup>D♯, ^<sup>6</sup>E♭ | |||
|- | |||
| 20 | |||
| 140.35 | |||
| [[51/47]] | |||
| ^<sup>4</sup>D♯, ^<sup>7</sup>E♭ | |||
|- | |||
| 21 | |||
| 147.37 | |||
| [[37/34]], [[49/45]] | |||
| ^<sup>5</sup>D♯, v<sup>8</sup>E | |||
|- | |||
| 22 | |||
| 154.39 | |||
| [[35/32]], [[47/43]] | |||
| ^<sup>6</sup>D♯, v<sup>7</sup>E | |||
|- | |||
| 23 | |||
| 161.4 | |||
| [[45/41]], [[56/51]] | |||
| ^<sup>7</sup>D♯, v<sup>6</sup>E | |||
|- | |||
| 24 | |||
| 168.42 | |||
| [[43/39]], [[54/49]] | |||
| ^<sup>8</sup>D♯, v<sup>5</sup>E | |||
|- | |||
| 25 | |||
| 175.44 | |||
| [[31/28]], [[52/47]] | |||
| v<sup>7</sup>D𝄪, v<sup>4</sup>E | |||
|- | |||
| 26 | |||
| 182.46 | |||
| [[10/9]] | |||
| v<sup>6</sup>D𝄪, v<sup>3</sup>E | |||
|- | |||
| 27 | |||
| 189.47 | |||
| [[29/26]], [[48/43]] | |||
| v<sup>5</sup>D𝄪, vvE | |||
|- | |||
| 28 | |||
| 196.49 | |||
| [[28/25]] | |||
| v<sup>4</sup>D𝄪, vE | |||
|- | |||
| 29 | |||
| 203.51 | |||
| [[9/8]] | |||
| E | |||
|- | |||
| 30 | |||
| 210.53 | |||
| [[35/31]] | |||
| ^E, ^<sup>4</sup>F♭ | |||
|- | |||
| 31 | |||
| 217.54 | |||
| [[17/15]] | |||
| ^^E, ^<sup>5</sup>F♭ | |||
|- | |||
| 32 | |||
| 224.56 | |||
| [[33/29]], [[41/36]] | |||
| ^<sup>3</sup>E, ^<sup>6</sup>F♭ | |||
|- | |||
| 33 | |||
| 231.58 | |||
| [[8/7]] | |||
| ^<sup>4</sup>E, ^<sup>7</sup>F♭ | |||
|- | |||
| 34 | |||
| 238.6 | |||
| [[31/27]], [[39/34]] | |||
| ^<sup>5</sup>E, v<sup>8</sup>F | |||
|- | |||
| 35 | |||
| 245.61 | |||
| | |||
| ^<sup>6</sup>E, v<sup>7</sup>F | |||
|- | |||
| 36 | |||
| 252.63 | |||
| [[37/32]] | |||
| ^<sup>7</sup>E, v<sup>6</sup>F | |||
|- | |||
| 37 | |||
| 259.65 | |||
| [[36/31]], [[43/37]] | |||
| ^<sup>8</sup>E, v<sup>5</sup>F | |||
|- | |||
| 38 | |||
| 266.67 | |||
| [[7/6]] | |||
| v<sup>7</sup>E♯, v<sup>4</sup>F | |||
|- | |||
| 39 | |||
| 273.68 | |||
| [[41/35]], [[48/41]] | |||
| v<sup>6</sup>E♯, v<sup>3</sup>F | |||
|- | |||
| 40 | |||
| 280.7 | |||
| [[20/17]] | |||
| v<sup>5</sup>E♯, vvF | |||
|- | |||
| 41 | |||
| 287.72 | |||
| | |||
| v<sup>4</sup>E♯, vF | |||
|- | |||
| 42 | |||
| 294.74 | |||
| [[32/27]], [[51/43]] | |||
| F | |||
|- | |||
| 43 | |||
| 301.75 | |||
| [[25/21]] | |||
| ^F, ^<sup>4</sup>G♭♭ | |||
|- | |||
| 44 | |||
| 308.77 | |||
| [[43/36]], [[49/41]], [[55/46]] | |||
| ^^F, ^<sup>5</sup>G♭♭ | |||
|- | |||
| 45 | |||
| 315.79 | |||
| [[6/5]] | |||
| ^<sup>3</sup>F, ^<sup>6</sup>G♭♭ | |||
|- | |||
| 46 | |||
| 322.81 | |||
| [[41/34]], [[47/39]] | |||
| ^<sup>4</sup>F, ^<sup>7</sup>G♭♭ | |||
|- | |||
| 47 | |||
| 329.82 | |||
| [[52/43]] | |||
| ^<sup>5</sup>F, v<sup>8</sup>G♭ | |||
|- | |||
| 48 | |||
| 336.84 | |||
| [[17/14]], [[62/51]] | |||
| ^<sup>6</sup>F, v<sup>7</sup>G♭ | |||
|- | |||
| 49 | |||
| 343.86 | |||
| [[50/41]] | |||
| ^<sup>7</sup>F, v<sup>6</sup>G♭ | |||
|- | |||
| 50 | |||
| 350.88 | |||
| [[49/40]], [[60/49]] | |||
| ^<sup>8</sup>F, v<sup>5</sup>G♭ | |||
|- | |||
| 51 | |||
| 357.89 | |||
| | |||
| v<sup>7</sup>F♯, v<sup>4</sup>G♭ | |||
|- | |||
| 52 | |||
| 364.91 | |||
| [[21/17]], [[58/47]] | |||
| v<sup>6</sup>F♯, v<sup>3</sup>G♭ | |||
|- | |||
| 53 | |||
| 371.93 | |||
| [[31/25]] | |||
| v<sup>5</sup>F♯, vvG♭ | |||
|- | |||
| 54 | |||
| 378.95 | |||
| [[51/41]], [[56/45]] | |||
| v<sup>4</sup>F♯, vG♭ | |||
|- | |||
| 55 | |||
| 385.96 | |||
| [[5/4]] | |||
| v<sup>3</sup>F♯, G♭ | |||
|- | |||
| 56 | |||
| 392.98 | |||
| | |||
| vvF♯, ^G♭ | |||
|- | |||
| 57 | |||
| 400 | |||
| [[29/23]], [[34/27]] | |||
| vF♯, ^^G♭ | |||
|- | |||
| 58 | |||
| 407.02 | |||
| [[43/34]], [[62/49]] | |||
| F♯, ^<sup>3</sup>G♭ | |||
|- | |||
| 59 | |||
| 414.04 | |||
| [[33/26]], [[47/37]] | |||
| ^F♯, ^<sup>4</sup>G♭ | |||
|- | |||
| 60 | |||
| 421.05 | |||
| [[37/29]], [[51/40]] | |||
| ^^F♯, ^<sup>5</sup>G♭ | |||
|- | |||
| 61 | |||
| 428.07 | |||
| [[32/25]], [[41/32]] | |||
| ^<sup>3</sup>F♯, ^<sup>6</sup>G♭ | |||
|- | |||
| 62 | |||
| 435.09 | |||
| [[9/7]] | |||
| ^<sup>4</sup>F♯, ^<sup>7</sup>G♭ | |||
|- | |||
| 63 | |||
| 442.11 | |||
| [[31/24]], [[40/31]] | |||
| ^<sup>5</sup>F♯, v<sup>8</sup>G | |||
|- | |||
| 64 | |||
| 449.12 | |||
| [[35/27]] | |||
| ^<sup>6</sup>F♯, v<sup>7</sup>G | |||
|- | |||
| 65 | |||
| 456.14 | |||
| [[56/43]] | |||
| ^<sup>7</sup>F♯, v<sup>6</sup>G | |||
|- | |||
| 66 | |||
| 463.16 | |||
| [[17/13]] | |||
| ^<sup>8</sup>F♯, v<sup>5</sup>G | |||
|- | |||
| 67 | |||
| 470.18 | |||
| [[21/16]] | |||
| v<sup>7</sup>F𝄪, v<sup>4</sup>G | |||
|- | |||
| 68 | |||
| 477.19 | |||
| [[29/22]], [[54/41]] | |||
| v<sup>6</sup>F𝄪, v<sup>3</sup>G | |||
|- | |||
| 69 | |||
| 484.21 | |||
| [[41/31]], [[45/34]] | |||
| v<sup>5</sup>F𝄪, vvG | |||
|- | |||
| 70 | |||
| 491.23 | |||
| | |||
| v<sup>4</sup>F𝄪, vG | |||
|- | |||
| 71 | |||
| 498.25 | |||
| [[4/3]] | |||
| G | |||
|- | |||
| 72 | |||
| 505.26 | |||
| | |||
| ^G, ^<sup>4</sup>A♭♭ | |||
|- | |||
| 73 | |||
| 512.28 | |||
| [[39/29]], [[43/32]] | |||
| ^^G, ^<sup>5</sup>A♭♭ | |||
|- | |||
| 74 | |||
| 519.3 | |||
| [[27/20]], [[58/43]] | |||
| ^<sup>3</sup>G, ^<sup>6</sup>A♭♭ | |||
|- | |||
| 75 | |||
| 526.32 | |||
| [[42/31]] | |||
| ^<sup>4</sup>G, ^<sup>7</sup>A♭♭ | |||
|- | |||
| 76 | |||
| 533.33 | |||
| [[34/25]], [[49/36]] | |||
| ^<sup>5</sup>G, v<sup>8</sup>A♭ | |||
|- | |||
| 77 | |||
| 540.35 | |||
| [[41/30]], [[56/41]] | |||
| ^<sup>6</sup>G, v<sup>7</sup>A♭ | |||
|- | |||
| 78 | |||
| 547.37 | |||
| [[48/35]] | |||
| ^<sup>7</sup>G, v<sup>6</sup>A♭ | |||
|- | |||
| 79 | |||
| 554.39 | |||
| [[51/37]], [[62/45]] | |||
| ^<sup>8</sup>G, v<sup>5</sup>A♭ | |||
|- | |||
| 80 | |||
| 561.4 | |||
| [[47/34]] | |||
| v<sup>7</sup>G♯, v<sup>4</sup>A♭ | |||
|- | |||
| 81 | |||
| 568.42 | |||
| [[25/18]] | |||
| v<sup>6</sup>G♯, v<sup>3</sup>A♭ | |||
|- | |||
| 82 | |||
| 575.44 | |||
| [[46/33]], [[60/43]] | |||
| v<sup>5</sup>G♯, vvA♭ | |||
|- | |||
| 83 | |||
| 582.46 | |||
| [[7/5]] | |||
| v<sup>4</sup>G♯, vA♭ | |||
|- | |||
| 84 | |||
| 589.47 | |||
| [[45/32]], [[52/37]] | |||
| v<sup>3</sup>G♯, A♭ | |||
|- | |||
| 85 | |||
| 596.49 | |||
| [[24/17]] | |||
| vvG♯, ^A♭ | |||
|- | |||
| 86 | |||
| 603.51 | |||
| [[17/12]] | |||
| vG♯, ^^A♭ | |||
|- | |||
| 87 | |||
| 610.53 | |||
| [[37/26]] | |||
| G♯, ^<sup>3</sup>A♭ | |||
|- | |||
| 88 | |||
| 617.54 | |||
| [[10/7]] | |||
| ^G♯, ^<sup>4</sup>A♭ | |||
|- | |||
| 89 | |||
| 624.56 | |||
| [[33/23]], [[43/30]] | |||
| ^^G♯, ^<sup>5</sup>A♭ | |||
|- | |||
| 90 | |||
| 631.58 | |||
| [[36/25]], [[49/34]] | |||
| ^<sup>3</sup>G♯, ^<sup>6</sup>A♭ | |||
|- | |||
| 91 | |||
| 638.6 | |||
| | |||
| ^<sup>4</sup>G♯, ^<sup>7</sup>A♭ | |||
|- | |||
| 92 | |||
| 645.61 | |||
| [[45/31]] | |||
| ^<sup>5</sup>G♯, v<sup>8</sup>A | |||
|- | |||
| 93 | |||
| 652.63 | |||
| [[35/24]], [[51/35]] | |||
| ^<sup>6</sup>G♯, v<sup>7</sup>A | |||
|- | |||
| 94 | |||
| 659.65 | |||
| [[41/28]], [[60/41]] | |||
| ^<sup>7</sup>G♯, v<sup>6</sup>A | |||
|- | |||
| 95 | |||
| 666.67 | |||
| [[25/17]], [[47/32]] | |||
| ^<sup>8</sup>G♯, v<sup>5</sup>A | |||
|- | |||
| 96 | |||
| 673.68 | |||
| [[31/21]] | |||
| v<sup>7</sup>G𝄪, v<sup>4</sup>A | |||
|- | |||
| 97 | |||
| 680.7 | |||
| [[40/27]], [[43/29]] | |||
| v<sup>6</sup>G𝄪, v<sup>3</sup>A | |||
|- | |||
| 98 | |||
| 687.72 | |||
| [[58/39]] | |||
| v<sup>5</sup>G𝄪, vvA | |||
|- | |||
| 99 | |||
| 694.74 | |||
| | |||
| v<sup>4</sup>G𝄪, vA | |||
|- | |||
| 100 | |||
| 701.75 | |||
| [[3/2]] | |||
| A | |||
|- | |||
| 101 | |||
| 708.77 | |||
| | |||
| ^A, ^<sup>4</sup>B♭♭ | |||
|- | |||
| 102 | |||
| 715.79 | |||
| [[62/41]] | |||
| ^^A, ^<sup>5</sup>B♭♭ | |||
|- | |||
| 103 | |||
| 722.81 | |||
| [[41/27]], [[44/29]] | |||
| ^<sup>3</sup>A, ^<sup>6</sup>B♭♭ | |||
|- | |||
| 104 | |||
| 729.82 | |||
| [[32/21]] | |||
| ^<sup>4</sup>A, ^<sup>7</sup>B♭♭ | |||
|- | |||
| 105 | |||
| 736.84 | |||
| [[26/17]], [[49/32]] | |||
| ^<sup>5</sup>A, v<sup>8</sup>B♭ | |||
|- | |||
| 106 | |||
| 743.86 | |||
| [[43/28]] | |||
| ^<sup>6</sup>A, v<sup>7</sup>B♭ | |||
|- | |||
| 107 | |||
| 750.88 | |||
| [[54/35]] | |||
| ^<sup>7</sup>A, v<sup>6</sup>B♭ | |||
|- | |||
| 108 | |||
| 757.89 | |||
| [[31/20]], [[48/31]] | |||
| ^<sup>8</sup>A, v<sup>5</sup>B♭ | |||
|- | |||
| 109 | |||
| 764.91 | |||
| [[14/9]] | |||
| v<sup>7</sup>A♯, v<sup>4</sup>B♭ | |||
|- | |||
| 110 | |||
| 771.93 | |||
| [[25/16]] | |||
| v<sup>6</sup>A♯, v<sup>3</sup>B♭ | |||
|- | |||
| 111 | |||
| 778.95 | |||
| [[58/37]] | |||
| v<sup>5</sup>A♯, vvB♭ | |||
|- | |||
| 112 | |||
| 785.96 | |||
| [[52/33]] | |||
| v<sup>4</sup>A♯, vB♭ | |||
|- | |||
| 113 | |||
| 792.98 | |||
| [[49/31]] | |||
| v<sup>3</sup>A♯, B♭ | |||
|- | |||
| 114 | |||
| 800 | |||
| [[27/17]], [[46/29]] | |||
| vvA♯, ^B♭ | |||
|- | |||
| 115 | |||
| 807.02 | |||
| [[51/32]] | |||
| vA♯, ^^B♭ | |||
|- | |||
| 116 | |||
| 814.04 | |||
| [[8/5]] | |||
| A♯, ^<sup>3</sup>B♭ | |||
|- | |||
| 117 | |||
| 821.05 | |||
| [[45/28]] | |||
| ^A♯, ^<sup>4</sup>B♭ | |||
|- | |||
| 118 | |||
| 828.07 | |||
| [[50/31]] | |||
| ^^A♯, ^<sup>5</sup>B♭ | |||
|- | |||
| 119 | |||
| 835.09 | |||
| [[34/21]], [[47/29]] | |||
| ^<sup>3</sup>A♯, ^<sup>6</sup>B♭ | |||
|- | |||
| 120 | |||
| 842.11 | |||
| | |||
| ^<sup>4</sup>A♯, ^<sup>7</sup>B♭ | |||
|- | |||
| 121 | |||
| 849.12 | |||
| [[49/30]] | |||
| ^<sup>5</sup>A♯, v<sup>8</sup>B | |||
|- | |||
| 122 | |||
| 856.14 | |||
| [[41/25]] | |||
| ^<sup>6</sup>A♯, v<sup>7</sup>B | |||
|- | |||
| 123 | |||
| 863.16 | |||
| [[28/17]], [[51/31]] | |||
| ^<sup>7</sup>A♯, v<sup>6</sup>B | |||
|- | |||
| 124 | |||
| 870.18 | |||
| [[43/26]] | |||
| ^<sup>8</sup>A♯, v<sup>5</sup>B | |||
|- | |||
| 125 | |||
| 877.19 | |||
| | |||
| v<sup>7</sup>A𝄪, v<sup>4</sup>B | |||
|- | |||
| 126 | |||
| 884.21 | |||
| [[5/3]] | |||
| v<sup>6</sup>A𝄪, v<sup>3</sup>B | |||
|- | |||
| 127 | |||
| 891.23 | |||
| | |||
| v<sup>5</sup>A𝄪, vvB | |||
|- | |||
| 128 | |||
| 898.25 | |||
| [[42/25]] | |||
| v<sup>4</sup>A𝄪, vB | |||
|- | |||
| 129 | |||
| 905.26 | |||
| [[27/16]] | |||
| B | |||
|- | |||
| 130 | |||
| 912.28 | |||
| | |||
| ^B, ^<sup>4</sup>C♭ | |||
|- | |||
| 131 | |||
| 919.3 | |||
| [[17/10]] | |||
| ^^B, ^<sup>5</sup>C♭ | |||
|- | |||
| 132 | |||
| 926.32 | |||
| [[41/24]] | |||
| ^<sup>3</sup>B, ^<sup>6</sup>C♭ | |||
|- | |||
| 133 | |||
| 933.33 | |||
| [[12/7]] | |||
| ^<sup>4</sup>B, ^<sup>7</sup>C♭ | |||
|- | |||
| 134 | |||
| 940.35 | |||
| [[31/18]] | |||
| ^<sup>5</sup>B, v<sup>8</sup>C | |||
|- | |||
| 135 | |||
| 947.37 | |||
| | |||
| ^<sup>6</sup>B, v<sup>7</sup>C | |||
|- | |||
| 136 | |||
| 954.39 | |||
| | |||
| ^<sup>7</sup>B, v<sup>6</sup>C | |||
|- | |||
| 137 | |||
| 961.4 | |||
| [[54/31]] | |||
| ^<sup>8</sup>B, v<sup>5</sup>C | |||
|- | |||
| 138 | |||
| 968.42 | |||
| [[7/4]] | |||
| v<sup>7</sup>B♯, v<sup>4</sup>C | |||
|- | |||
| 139 | |||
| 975.44 | |||
| [[58/33]] | |||
| v<sup>6</sup>B♯, v<sup>3</sup>C | |||
|- | |||
| 140 | |||
| 982.46 | |||
| [[30/17]] | |||
| v<sup>5</sup>B♯, vvC | |||
|- | |||
| 141 | |||
| 989.47 | |||
| [[62/35]] | |||
| v<sup>4</sup>B♯, vC | |||
|- | |||
| 142 | |||
| 996.49 | |||
| [[16/9]] | |||
| C | |||
|- | |||
| 143 | |||
| 1003.51 | |||
| [[25/14]] | |||
| ^C, ^<sup>4</sup>D♭♭ | |||
|- | |||
| 144 | |||
| 1010.53 | |||
| [[43/24]], [[52/29]] | |||
| ^^C, ^<sup>5</sup>D♭♭ | |||
|- | |||
| 145 | |||
| 1017.54 | |||
| [[9/5]] | |||
| ^<sup>3</sup>C, ^<sup>6</sup>D♭♭ | |||
|- | |||
| 146 | |||
| 1024.56 | |||
| [[47/26]], [[56/31]] | |||
| ^<sup>4</sup>C, ^<sup>7</sup>D♭♭ | |||
|- | |||
| 147 | |||
| 1031.58 | |||
| [[49/27]] | |||
| ^<sup>5</sup>C, v<sup>8</sup>D♭ | |||
|- | |||
| 148 | |||
| 1038.6 | |||
| [[51/28]] | |||
| ^<sup>6</sup>C, v<sup>7</sup>D♭ | |||
|- | |||
| 149 | |||
| 1045.61 | |||
| | |||
| ^<sup>7</sup>C, v<sup>6</sup>D♭ | |||
|- | |||
| 150 | |||
| 1052.63 | |||
| | |||
| ^<sup>8</sup>C, v<sup>5</sup>D♭ | |||
|- | |||
| 151 | |||
| 1059.65 | |||
| | |||
| v<sup>7</sup>C♯, v<sup>4</sup>D♭ | |||
|- | |||
| 152 | |||
| 1066.67 | |||
| [[50/27]] | |||
| v<sup>6</sup>C♯, v<sup>3</sup>D♭ | |||
|- | |||
| 153 | |||
| 1073.68 | |||
| | |||
| v<sup>5</sup>C♯, vvD♭ | |||
|- | |||
| 154 | |||
| 1080.7 | |||
| [[28/15]] | |||
| v<sup>4</sup>C♯, vD♭ | |||
|- | |||
| 155 | |||
| 1087.72 | |||
| [[15/8]] | |||
| v<sup>3</sup>C♯, D♭ | |||
|- | |||
| 156 | |||
| 1094.74 | |||
| [[32/17]] | |||
| vvC♯, ^D♭ | |||
|- | |||
| 157 | |||
| 1101.75 | |||
| [[17/9]] | |||
| vC♯, ^^D♭ | |||
|- | |||
| 158 | |||
| 1108.77 | |||
| [[55/29]] | |||
| C♯, ^<sup>3</sup>D♭ | |||
|- | |||
| 159 | |||
| 1115.79 | |||
| [[40/21]] | |||
| ^C♯, ^<sup>4</sup>D♭ | |||
|- | |||
| 160 | |||
| 1122.81 | |||
| [[44/23]] | |||
| ^^C♯, ^<sup>5</sup>D♭ | |||
|- | |||
| 161 | |||
| 1129.82 | |||
| [[48/25]] | |||
| ^<sup>3</sup>C♯, ^<sup>6</sup>D♭ | |||
|- | |||
| 162 | |||
| 1136.84 | |||
| [[27/14]] | |||
| ^<sup>4</sup>C♯, ^<sup>7</sup>D♭ | |||
|- | |||
| 163 | |||
| 1143.86 | |||
| [[31/16]], [[60/31]] | |||
| ^<sup>5</sup>C♯, v<sup>8</sup>D | |||
|- | |||
| 164 | |||
| 1150.88 | |||
| [[35/18]] | |||
| ^<sup>6</sup>C♯, v<sup>7</sup>D | |||
|- | |||
| 165 | |||
| 1157.89 | |||
| [[41/21]] | |||
| ^<sup>7</sup>C♯, v<sup>6</sup>D | |||
|- | |||
| 166 | |||
| 1164.91 | |||
| [[49/25]] | |||
| ^<sup>8</sup>C♯, v<sup>5</sup>D | |||
|- | |||
| 167 | |||
| 1171.93 | |||
| | |||
| v<sup>7</sup>C𝄪, v<sup>4</sup>D | |||
|- | |||
| 168 | |||
| 1178.95 | |||
| | |||
| v<sup>6</sup>C𝄪, v<sup>3</sup>D | |||
|- | |||
| 169 | |||
| 1185.96 | |||
| | |||
| v<sup>5</sup>C𝄪, vvD | |||
|- | |||
| 170 | |||
| 1192.98 | |||
| | |||
| v<sup>4</sup>C𝄪, vD | |||
|- | |||
| 171 | |||
| 1200 | |||
| [[2/1]] | |||
| D | |||
|} | |||
Revision as of 09:37, 25 December 2025
An excellent system for approximating the 7-limit is 171edo. The 9-odd-limit tonality diamond is approximated with just over 0.4 cents of error, and all 7-limit intervals with odd limit up to 10,000,000 are consistent (first odd to cause inconsistencies is 13671875). 171edo is thus an excellent system for classifying intervals and commas simply and accurately.
| Harmonic | 2 | 3 | 5 | 7 | |
|---|---|---|---|---|---|
| Error | Absolute (¢) | +0.00000 | -0.20061 | -0.34880 | -0.40485 |
| Relative (%) | +0.0 | -2.9 | -5.0 | -5.8 | |
| Steps (reduced) |
171 (0) |
271 (100) |
397 (55) |
480 (138) | |
| Steps | Cents | Approximate ratios | Ups and downs notation |
|---|---|---|---|
| 0 | 0 | 1/1 | D |
| 1 | 7.02 | ^D, ^4E♭♭ | |
| 2 | 14.04 | ^^D, ^5E♭♭ | |
| 3 | 21.05 | ^3D, ^6E♭♭ | |
| 4 | 28.07 | ^4D, ^7E♭♭ | |
| 5 | 35.09 | 49/48, 50/49, 51/50 | ^5D, v8E♭ |
| 6 | 42.11 | 41/40, 42/41 | ^6D, v7E♭ |
| 7 | 49.12 | 35/34, 36/35 | ^7D, v6E♭ |
| 8 | 56.14 | 31/30, 32/31 | ^8D, v5E♭ |
| 9 | 63.16 | 28/27 | v7D♯, v4E♭ |
| 10 | 70.18 | 25/24, 51/49 | v6D♯, v3E♭ |
| 11 | 77.19 | 23/22 | v5D♯, vvE♭ |
| 12 | 84.21 | 21/20 | v4D♯, vE♭ |
| 13 | 91.23 | 39/37, 58/55 | v3D♯, E♭ |
| 14 | 98.25 | 18/17, 55/52 | vvD♯, ^E♭ |
| 15 | 105.26 | 17/16 | vD♯, ^^E♭ |
| 16 | 112.28 | 16/15 | D♯, ^3E♭ |
| 17 | 119.3 | 15/14 | ^D♯, ^4E♭ |
| 18 | 126.32 | 43/40 | ^^D♯, ^5E♭ |
| 19 | 133.33 | 27/25 | ^3D♯, ^6E♭ |
| 20 | 140.35 | 51/47 | ^4D♯, ^7E♭ |
| 21 | 147.37 | 37/34, 49/45 | ^5D♯, v8E |
| 22 | 154.39 | 35/32, 47/43 | ^6D♯, v7E |
| 23 | 161.4 | 45/41, 56/51 | ^7D♯, v6E |
| 24 | 168.42 | 43/39, 54/49 | ^8D♯, v5E |
| 25 | 175.44 | 31/28, 52/47 | v7D𝄪, v4E |
| 26 | 182.46 | 10/9 | v6D𝄪, v3E |
| 27 | 189.47 | 29/26, 48/43 | v5D𝄪, vvE |
| 28 | 196.49 | 28/25 | v4D𝄪, vE |
| 29 | 203.51 | 9/8 | E |
| 30 | 210.53 | 35/31 | ^E, ^4F♭ |
| 31 | 217.54 | 17/15 | ^^E, ^5F♭ |
| 32 | 224.56 | 33/29, 41/36 | ^3E, ^6F♭ |
| 33 | 231.58 | 8/7 | ^4E, ^7F♭ |
| 34 | 238.6 | 31/27, 39/34 | ^5E, v8F |
| 35 | 245.61 | ^6E, v7F | |
| 36 | 252.63 | 37/32 | ^7E, v6F |
| 37 | 259.65 | 36/31, 43/37 | ^8E, v5F |
| 38 | 266.67 | 7/6 | v7E♯, v4F |
| 39 | 273.68 | 41/35, 48/41 | v6E♯, v3F |
| 40 | 280.7 | 20/17 | v5E♯, vvF |
| 41 | 287.72 | v4E♯, vF | |
| 42 | 294.74 | 32/27, 51/43 | F |
| 43 | 301.75 | 25/21 | ^F, ^4G♭♭ |
| 44 | 308.77 | 43/36, 49/41, 55/46 | ^^F, ^5G♭♭ |
| 45 | 315.79 | 6/5 | ^3F, ^6G♭♭ |
| 46 | 322.81 | 41/34, 47/39 | ^4F, ^7G♭♭ |
| 47 | 329.82 | 52/43 | ^5F, v8G♭ |
| 48 | 336.84 | 17/14, 62/51 | ^6F, v7G♭ |
| 49 | 343.86 | 50/41 | ^7F, v6G♭ |
| 50 | 350.88 | 49/40, 60/49 | ^8F, v5G♭ |
| 51 | 357.89 | v7F♯, v4G♭ | |
| 52 | 364.91 | 21/17, 58/47 | v6F♯, v3G♭ |
| 53 | 371.93 | 31/25 | v5F♯, vvG♭ |
| 54 | 378.95 | 51/41, 56/45 | v4F♯, vG♭ |
| 55 | 385.96 | 5/4 | v3F♯, G♭ |
| 56 | 392.98 | vvF♯, ^G♭ | |
| 57 | 400 | 29/23, 34/27 | vF♯, ^^G♭ |
| 58 | 407.02 | 43/34, 62/49 | F♯, ^3G♭ |
| 59 | 414.04 | 33/26, 47/37 | ^F♯, ^4G♭ |
| 60 | 421.05 | 37/29, 51/40 | ^^F♯, ^5G♭ |
| 61 | 428.07 | 32/25, 41/32 | ^3F♯, ^6G♭ |
| 62 | 435.09 | 9/7 | ^4F♯, ^7G♭ |
| 63 | 442.11 | 31/24, 40/31 | ^5F♯, v8G |
| 64 | 449.12 | 35/27 | ^6F♯, v7G |
| 65 | 456.14 | 56/43 | ^7F♯, v6G |
| 66 | 463.16 | 17/13 | ^8F♯, v5G |
| 67 | 470.18 | 21/16 | v7F𝄪, v4G |
| 68 | 477.19 | 29/22, 54/41 | v6F𝄪, v3G |
| 69 | 484.21 | 41/31, 45/34 | v5F𝄪, vvG |
| 70 | 491.23 | v4F𝄪, vG | |
| 71 | 498.25 | 4/3 | G |
| 72 | 505.26 | ^G, ^4A♭♭ | |
| 73 | 512.28 | 39/29, 43/32 | ^^G, ^5A♭♭ |
| 74 | 519.3 | 27/20, 58/43 | ^3G, ^6A♭♭ |
| 75 | 526.32 | 42/31 | ^4G, ^7A♭♭ |
| 76 | 533.33 | 34/25, 49/36 | ^5G, v8A♭ |
| 77 | 540.35 | 41/30, 56/41 | ^6G, v7A♭ |
| 78 | 547.37 | 48/35 | ^7G, v6A♭ |
| 79 | 554.39 | 51/37, 62/45 | ^8G, v5A♭ |
| 80 | 561.4 | 47/34 | v7G♯, v4A♭ |
| 81 | 568.42 | 25/18 | v6G♯, v3A♭ |
| 82 | 575.44 | 46/33, 60/43 | v5G♯, vvA♭ |
| 83 | 582.46 | 7/5 | v4G♯, vA♭ |
| 84 | 589.47 | 45/32, 52/37 | v3G♯, A♭ |
| 85 | 596.49 | 24/17 | vvG♯, ^A♭ |
| 86 | 603.51 | 17/12 | vG♯, ^^A♭ |
| 87 | 610.53 | 37/26 | G♯, ^3A♭ |
| 88 | 617.54 | 10/7 | ^G♯, ^4A♭ |
| 89 | 624.56 | 33/23, 43/30 | ^^G♯, ^5A♭ |
| 90 | 631.58 | 36/25, 49/34 | ^3G♯, ^6A♭ |
| 91 | 638.6 | ^4G♯, ^7A♭ | |
| 92 | 645.61 | 45/31 | ^5G♯, v8A |
| 93 | 652.63 | 35/24, 51/35 | ^6G♯, v7A |
| 94 | 659.65 | 41/28, 60/41 | ^7G♯, v6A |
| 95 | 666.67 | 25/17, 47/32 | ^8G♯, v5A |
| 96 | 673.68 | 31/21 | v7G𝄪, v4A |
| 97 | 680.7 | 40/27, 43/29 | v6G𝄪, v3A |
| 98 | 687.72 | 58/39 | v5G𝄪, vvA |
| 99 | 694.74 | v4G𝄪, vA | |
| 100 | 701.75 | 3/2 | A |
| 101 | 708.77 | ^A, ^4B♭♭ | |
| 102 | 715.79 | 62/41 | ^^A, ^5B♭♭ |
| 103 | 722.81 | 41/27, 44/29 | ^3A, ^6B♭♭ |
| 104 | 729.82 | 32/21 | ^4A, ^7B♭♭ |
| 105 | 736.84 | 26/17, 49/32 | ^5A, v8B♭ |
| 106 | 743.86 | 43/28 | ^6A, v7B♭ |
| 107 | 750.88 | 54/35 | ^7A, v6B♭ |
| 108 | 757.89 | 31/20, 48/31 | ^8A, v5B♭ |
| 109 | 764.91 | 14/9 | v7A♯, v4B♭ |
| 110 | 771.93 | 25/16 | v6A♯, v3B♭ |
| 111 | 778.95 | 58/37 | v5A♯, vvB♭ |
| 112 | 785.96 | 52/33 | v4A♯, vB♭ |
| 113 | 792.98 | 49/31 | v3A♯, B♭ |
| 114 | 800 | 27/17, 46/29 | vvA♯, ^B♭ |
| 115 | 807.02 | 51/32 | vA♯, ^^B♭ |
| 116 | 814.04 | 8/5 | A♯, ^3B♭ |
| 117 | 821.05 | 45/28 | ^A♯, ^4B♭ |
| 118 | 828.07 | 50/31 | ^^A♯, ^5B♭ |
| 119 | 835.09 | 34/21, 47/29 | ^3A♯, ^6B♭ |
| 120 | 842.11 | ^4A♯, ^7B♭ | |
| 121 | 849.12 | 49/30 | ^5A♯, v8B |
| 122 | 856.14 | 41/25 | ^6A♯, v7B |
| 123 | 863.16 | 28/17, 51/31 | ^7A♯, v6B |
| 124 | 870.18 | 43/26 | ^8A♯, v5B |
| 125 | 877.19 | v7A𝄪, v4B | |
| 126 | 884.21 | 5/3 | v6A𝄪, v3B |
| 127 | 891.23 | v5A𝄪, vvB | |
| 128 | 898.25 | 42/25 | v4A𝄪, vB |
| 129 | 905.26 | 27/16 | B |
| 130 | 912.28 | ^B, ^4C♭ | |
| 131 | 919.3 | 17/10 | ^^B, ^5C♭ |
| 132 | 926.32 | 41/24 | ^3B, ^6C♭ |
| 133 | 933.33 | 12/7 | ^4B, ^7C♭ |
| 134 | 940.35 | 31/18 | ^5B, v8C |
| 135 | 947.37 | ^6B, v7C | |
| 136 | 954.39 | ^7B, v6C | |
| 137 | 961.4 | 54/31 | ^8B, v5C |
| 138 | 968.42 | 7/4 | v7B♯, v4C |
| 139 | 975.44 | 58/33 | v6B♯, v3C |
| 140 | 982.46 | 30/17 | v5B♯, vvC |
| 141 | 989.47 | 62/35 | v4B♯, vC |
| 142 | 996.49 | 16/9 | C |
| 143 | 1003.51 | 25/14 | ^C, ^4D♭♭ |
| 144 | 1010.53 | 43/24, 52/29 | ^^C, ^5D♭♭ |
| 145 | 1017.54 | 9/5 | ^3C, ^6D♭♭ |
| 146 | 1024.56 | 47/26, 56/31 | ^4C, ^7D♭♭ |
| 147 | 1031.58 | 49/27 | ^5C, v8D♭ |
| 148 | 1038.6 | 51/28 | ^6C, v7D♭ |
| 149 | 1045.61 | ^7C, v6D♭ | |
| 150 | 1052.63 | ^8C, v5D♭ | |
| 151 | 1059.65 | v7C♯, v4D♭ | |
| 152 | 1066.67 | 50/27 | v6C♯, v3D♭ |
| 153 | 1073.68 | v5C♯, vvD♭ | |
| 154 | 1080.7 | 28/15 | v4C♯, vD♭ |
| 155 | 1087.72 | 15/8 | v3C♯, D♭ |
| 156 | 1094.74 | 32/17 | vvC♯, ^D♭ |
| 157 | 1101.75 | 17/9 | vC♯, ^^D♭ |
| 158 | 1108.77 | 55/29 | C♯, ^3D♭ |
| 159 | 1115.79 | 40/21 | ^C♯, ^4D♭ |
| 160 | 1122.81 | 44/23 | ^^C♯, ^5D♭ |
| 161 | 1129.82 | 48/25 | ^3C♯, ^6D♭ |
| 162 | 1136.84 | 27/14 | ^4C♯, ^7D♭ |
| 163 | 1143.86 | 31/16, 60/31 | ^5C♯, v8D |
| 164 | 1150.88 | 35/18 | ^6C♯, v7D |
| 165 | 1157.89 | 41/21 | ^7C♯, v6D |
| 166 | 1164.91 | 49/25 | ^8C♯, v5D |
| 167 | 1171.93 | v7C𝄪, v4D | |
| 168 | 1178.95 | v6C𝄪, v3D | |
| 169 | 1185.96 | v5C𝄪, vvD | |
| 170 | 1192.98 | v4C𝄪, vD | |
| 171 | 1200 | 2/1 | D |