User:Contribution/Exploring Selected Modes in 12-EDO: Difference between revisions
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== Distincly tempered out commas == | |||
12edo is distincly consistent in the 5-limit. There are precisely 14 distinct tempered out commas, which are ratios formed by sequences of intervals where every note is unique, except for the starting and ending notes, which remain the same. | |||
{| class="wikitable center-all left-2 right-3 right-5 left-6" | |||
|+style=white-space:nowrap|All commas tempered out in 12-tet throughout series of 5-odd-limit intervals with all notes distinct | |||
! Ratio | |||
! Factorization | |||
! Cents | |||
! Limit | |||
! - Cents | |||
! 1 / Factorization | |||
! 1 / Ratio | |||
|- | |||
|[[81/80]] | |||
| 2<sup>-4</sup> • 3<sup>4</sup> • 5<sup>-1</sup> | |||
| 21.506 | |||
| 5 | |||
| -21.506 | |||
| 2<sup>4</sup> • 3<sup>-4</sup> • 5<sup>1</sup> | |||
|[[80/81]] | |||
|- | |||
|[[128/125]] | |||
| 2<sup>7</sup> • 5<sup>-3</sup> | |||
| 41.059 | |||
| 5 | |||
| -41.059 | |||
| 2<sup>-7</sup> • 5<sup>3</sup> | |||
|[[125/128]] | |||
|- | |||
|[[648/625]] | |||
| 2<sup>3</sup> • 3<sup>4</sup> • 5<sup>-4</sup> | |||
| 62.565 | |||
| 5 | |||
| -62.565 | |||
| 2<sup>-3</sup> • 3<sup>-4</sup> • 5<sup>4</sup> | |||
|[[625/648]] | |||
|- | |||
|[[2048/2025]] | |||
| 2<sup>11</sup> • 3<sup>-4</sup> • 5<sup>-2</sup> | |||
| 19.553 | |||
| 5 | |||
| -19.553 | |||
| 2<sup>-11</sup> • 3<sup>4</sup> • 5<sup>2</sup> | |||
|[[2025/2048]] | |||
|- | |||
|[[6561/6250]] | |||
| 2<sup>-1</sup> • 3<sup>8</sup> • 5<sup>-5</sup> | |||
| 84.071 | |||
| 5 | |||
| -84.071 | |||
| 2<sup>1</sup> • 3<sup>-8</sup> • 5<sup>5</sup> | |||
|[[6250/6561]] | |||
|- | |||
|[[32805/32768]] | |||
| 2<sup>-15</sup> • 3<sup>8</sup> • 5<sup>1</sup> | |||
| 1.954 | |||
| 5 | |||
| -1.954 | |||
| 2<sup>15</sup> • 3<sup>-8</sup> • 5<sup>-1</sup> | |||
|[[32768/32805]] | |||
|- | |||
|[[82944/78125]] | |||
| 2<sup>10</sup> • 3<sup>4</sup> • 5<sup>-7</sup> | |||
| 103.624 | |||
| 5 | |||
| -103.624 | |||
| 2<sup>-10</sup> • 3<sup>-4</sup> • 5<sup>7</sup> | |||
|[[78125/82944]] | |||
|- | |||
|[[262144/253125]] | |||
| 2<sup>18</sup> • 3<sup>-4</sup> • 5<sup>-5</sup> | |||
| 60.611 | |||
| 5 | |||
| -60.611 | |||
| 2<sup>-18</sup> • 3<sup>4</sup> • 5<sup>5</sup> | |||
|[[253125/262144]] | |||
|- | |||
|[[531441/500000]] | |||
| 2<sup>-5</sup> • 3<sup>12</sup> • 5<sup>-6</sup> | |||
| 105.578 | |||
| 5 | |||
| -105.578 | |||
| 2<sup>5</sup> • 3<sup>-12</sup> • 5<sup>6</sup> | |||
|[[500000/531441]] | |||
|- | |||
| [[531441/524288]] | |||
| 2<sup>-19</sup> • 3<sup>12</sup> | |||
| 23.460 | |||
| 3 | |||
| -23.460 | |||
| 2<sup>19</sup> • 3<sup>-12</sup> | |||
| [[524288/531441]] | |||
|- | |||
| [[2125764/1953125]] | |||
| 2<sup>2</sup> • 3<sup>12</sup> • 5<sup>-9</sup> | |||
| 146.637 | |||
| 5 | |||
| -146.637 | |||
| 2<sup>-2</sup> • 3<sup>-12</sup> • 5<sup>9</sup> | |||
| [[1953125/2125764]] | |||
|- | |||
| [[10616832/9765625]] | |||
| 2<sup>17</sup> • 3<sup>4</sup> • 5<sup>-10</sup> | |||
| 144.683 | |||
| 5 | |||
| -144.683 | |||
| 2<sup>-17</sup> • 3<sup>-4</sup> • 5<sup>10</sup> | |||
| [[9765625/10616832]] | |||
|- | |||
| [[33554432/31640625]] | |||
| 2<sup>25</sup> • 3<sup>-4</sup> • 5<sup>-8</sup> | |||
| 101.670 | |||
| 5 | |||
| -101.670 | |||
| 2<sup>-25</sup> • 3<sup>4</sup> • 5<sup>8</sup> | |||
| [[31640625/33554432]] | |||
|- | |||
| [[53747712/48828125]] | |||
| 2<sup>13</sup> • 3<sup>8</sup> • 5<sup>-11</sup> | |||
| 166.189 | |||
| 5 | |||
| -166.189 | |||
| 2<sup>-13</sup> • 3<sup>-8</sup> • 5<sup>11</sup> | |||
| [[48828125/53747712]] | |||
|} | |||
{| class="wikitable center-all left-2 right-3 right-5 left-6" | |||
|+style=white-space:nowrap| 7-limit commas tempered out in 12-tet with Benedetti height < 2**16 | |||
! Ratio | |||
! Factorization | |||
! Cents | |||
! Limit | |||
! - Cents | |||
! 1 / Factorization | |||
! 1 / Ratio | |||
|- | |||
| [[36/35]] | |||
| 2<sup>2</sup> • 3<sup>2</sup> • 5<sup>-1</sup> • 7<sup>-1</sup> | |||
| 48.770 | |||
| 7 | |||
| -48.770 | |||
| 2<sup>-2</sup> • 3<sup>-2</sup> • 5<sup>1</sup> • 7<sup>1</sup> | |||
| [[35/36]] | |||
|- | |||
| [[50/49]] | |||
| 2<sup>1</sup> • 5<sup>2</sup> • 7<sup>-2</sup> | |||
| 34.976 | |||
| 7 | |||
| -34.976 | |||
| 2<sup>-1</sup> • 5<sup>-2</sup> • 7<sup>2</sup> | |||
| [[49/50]] | |||
|- | |||
| [[64/63]] | |||
| 2<sup>6</sup> • 3<sup>-2</sup> • 7<sup>-1</sup> | |||
| 27.264 | |||
| 7 | |||
| -27.264 | |||
| 2<sup>-6</sup> • 3<sup>2</sup> • 7<sup>1</sup> | |||
| [[63/64]] | |||
|- | |||
| [[126/125]] | |||
| 2<sup>1</sup> • 3<sup>2</sup> • 5<sup>-3</sup> • 7<sup>1</sup> | |||
| 13.795 | |||
| 7 | |||
| -13.795 | |||
| 2<sup>-1</sup> • 3<sup>-2</sup> • 5<sup>3</sup> • 7<sup>-1</sup> | |||
| [[125/126]] | |||
|- | |||
| [[225/224]] | |||
| 2<sup>-5</sup> • 3<sup>2</sup> • 5<sup>2</sup> • 7<sup>-1</sup> | |||
| 7.712 | |||
| 7 | |||
| -7.712 | |||
| 2<sup>5</sup> • 3<sup>-2</sup> • 5<sup>-2</sup> • 7<sup>1</sup> | |||
| [[224/225]] | |||
|- | |||
| [[256/245]] | |||
| 2<sup>8</sup> • 5<sup>-1</sup> • 7<sup>-2</sup> | |||
| 76.034 | |||
| 7 | |||
| -76.034 | |||
| 2<sup>-8</sup> • 5<sup>1</sup> • 7<sup>2</sup> | |||
| [[245/256]] | |||
|} | |||
== Modes == | == Modes == | ||
Line 743: | Line 930: | ||
|3 8 3 3 3 8 3 3 3 8 3 | |3 8 3 3 3 8 3 3 3 8 3 | ||
|3<sup>8</sup> • 5<sup>-11</sup> | |3<sup>8</sup> • 5<sup>-11</sup> | ||
|} | |} |