16ed5/3: Difference between revisions
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'''16ed5/3''' | {{Infobox ET}} | ||
'''16ed5/3''' is the [[Ed5/3|equal division of the just major sixth]] into sixteen parts of 55.2724 [[cent]]s each, corresponding to 21.7106[[edo]]. It is very closely related to the [[Escapade family|escapade temperament]]. It is vaguely equivalent to [[22edo]]. | |||
It very accurately approximates a number of low complexity just intervals, such as: [[4/3]] (<1¢), [[5/4]] (<1¢), [[11/8]] (<2¢), [[11/10]] (<1¢), [[16/15]] (<2¢), and [[25/16]] (<2¢). It also approximates the [[3/2|just fifth]] and [[2/1|octave]] to within | It very accurately approximates a number of low complexity just intervals, such as: [[4/3]] (<1¢), [[5/4]] (<1¢), [[11/8]] (<2¢), [[11/10]] (<1¢), [[16/15]] (<2¢), and [[25/16]] (<2¢). It also approximates the [[3/2|just fifth]] and [[2/1|octave]] to within 17¢, making it a flexible non-octave scale. Notably, having a period of [[5/3]], the diatonic minor third ([[6/5]]) is the period-reduced diatonic octave. This means both are approximated identically (16¢ sharp). | ||
== Harmonics == | |||
{{Harmonics in equal|16|5|3}} | |||
== Intervals == | == Intervals == | ||
16ed5/3 can be notated using steps 7 (~5/4) and 9 (~4/3) as generators, as these are accurate to within 0.6¢. The resulting scale is a heptatonic 2L 5s (similar to the octave repeating antidiatonic). | 16ed5/3 can be notated using steps 7 (~5/4) and 9 (~4/3) as generators, as these are accurate to within 0.6¢. The resulting scale is a heptatonic 2L 5s (similar to the octave repeating antidiatonic). It can also be notated using the fifth-generated [[Blackcomb]] temperament as discussed in [[#Temperaments]], which lines up quite nicely with diatonic notation, aside from the "minor second" being in neutral second range and "perfect fourth" being in superfourth range. | ||
{| class="wikitable center-all right-2" | {| class="wikitable center-all right-2" | ||
! Degree | ! Degree | ||
! Cents | ! Cents | ||
! | ! 5/3.4/3.11/6.31/18 subgroup interval | ||
! | ! Other interpretations | ||
! 2L 5s<5/3> mos-interval | |||
! 2L 5s<5/3> notation | |||
! 1L 4s<5/3> ([[Blackcomb]][5]) interval | |||
! 1L 4s<5/3> ([[Blackcomb]][5]) notation | |||
! Diatonic interval | ! Diatonic interval | ||
|- | |||
|- | |||
| '''0''' | | '''0''' | ||
| '''0.0000''' | | '''0.0000''' | ||
| '''1''' | | '''1/1''' | ||
| | |||
| '''unison''' | |||
| '''E''' | |||
| '''unison''' | | '''unison''' | ||
| '''C''' | |||
| '''unison''' | | '''unison''' | ||
|- | |- | ||
| 1 | | 1 | ||
| 55.2724 | | 55.2724 | ||
| | | 31/30, 32/31, 33/32 | ||
| 36/35 | |||
| aug unison | |||
| E# | |||
| aug unison | | aug unison | ||
| | | C# | ||
| | | quartertone | ||
|- | |- | ||
| 2 | | 2 | ||
| 110.5448 | | 110.5448 | ||
| 16/15 | | 16/15, 33/31 | ||
| 21/20 | |||
| min mos2nd | | min mos2nd | ||
| Fb | |||
| double-aug unison, dim second | |||
| Cx, Dbb | |||
| minor second | | minor second | ||
|- | |- | ||
| 3 | | 3 | ||
| 165.8173 | | 165.8173 | ||
| 11/10 | | 11/10 | ||
| | |||
| maj mos2nd | | maj mos2nd | ||
| F | |||
| minor second | |||
| Db | |||
| neutral second | | neutral second | ||
|- | |- | ||
| 4 | | 4 | ||
| 221.0897 | | 221.0897 | ||
| 25/22 | |||
| 8/7, 17/15 | | 8/7, 17/15 | ||
| min mos3rd | | min mos3rd | ||
| F#/Gb | |||
| major second | |||
| D | |||
| major second | | major second | ||
|- | |- | ||
| 5 | | 5 | ||
| 276.3621 | | 276.3621 | ||
| 75/64, 7/6, 20/17 | | 75/64, 88/75 | ||
| 7/6, 20/17 | |||
| maj mos3rd | | maj mos3rd | ||
| G | |||
| aug second | |||
| D# | |||
| subminor third | | subminor third | ||
|- | |- | ||
| 6 | | 6 | ||
| 331.6345 | | 331.6345 | ||
| 6/5 | | 40/33, 75/62 | ||
| 6/5, 17/14 | |||
| dim mos4th | | dim mos4th | ||
| G#/Ab | |||
| minor third | | minor third | ||
| | | Eb | ||
|- | | minor third | ||
|- | |||
| 7 | | 7 | ||
| ''386.9069'' | | ''386.9069'' | ||
| ''5/4'' | | ''5/4'' | ||
| | |||
| ''perf mos4th'' | | ''perf mos4th'' | ||
| A | |||
| major third | |||
| E | |||
| major third | | major third | ||
|- | |- | ||
| 8 | | 8 | ||
| 442.1794 | | 442.1794 | ||
| 9/7, 22/17 | | 31/24, 40/31 | ||
| 9/7, 35/27, 22/17 | |||
| aug mos4th | | aug mos4th | ||
| A#/Bb | |||
| aug third | |||
| E# | |||
| supermajor third | | supermajor third | ||
|- | |||
|- | |||
| 9 | | 9 | ||
| ''497.4517'' | | ''497.4517'' | ||
| ''4/3'' | | ''4/3'' | ||
| | |||
| ''perf mos5th'' | | ''perf mos5th'' | ||
| B | |||
| dim fourth | |||
| Fb | |||
| just fourth | | just fourth | ||
|- | |- | ||
| 10 | | 10 | ||
| 552.7242 | | 552.7242 | ||
| 25/18 | | 11/8, 62/45 | ||
| 25/18, 18/13 | |||
| aug mos5th | | aug mos5th | ||
| B# | |||
| perfect fourth | |||
| F | |||
| wide fourth | | wide fourth | ||
|- | |- | ||
| 11 | | 11 | ||
| 607.9966 | | 607.9966 | ||
| 64/45 | | 44/31, 64/45 | ||
| 10/7, 17/12 | |||
| min mos6th | | min mos6th | ||
| Cb | |||
| aug fourth | |||
| F# | |||
| large tritone | | large tritone | ||
|- | |- | ||
| 12 | | 12 | ||
| 663.2690 | | 663.2690 | ||
| 72/49 | | 22/15 | ||
| 72/49 | |||
| maj mos6th | | maj mos6th | ||
| C | |||
| dim fifth | |||
| Gb | |||
| narrow fifth | | narrow fifth | ||
|- | |- | ||
| 13 | | 13 | ||
| 718.5415 | | 718.5415 | ||
| 3/2 | | 50/33 | ||
| 3/2 | |||
| min mos7th | | min mos7th | ||
| C#/Db | |||
| perfect fifth | |||
| G | |||
| acute fifth | | acute fifth | ||
|- | |- | ||
| 14 | | 14 | ||
| 773.8129 | | 773.8129 | ||
| 25/16 | | 25/16 | ||
| | |||
| maj mos7th | | maj mos7th | ||
| D | |||
| aug fifth | |||
| G# | |||
| subminor sixth | | subminor sixth | ||
|- | |- | ||
| 15 | | 15 | ||
| 829.0863 | | 829.0863 | ||
| 50/31 | |||
| 8/5, 13/8 | | 8/5, 13/8 | ||
| dim mos8ave | | dim mos8ave | ||
| D#/Eb | |||
| dim sixth | |||
| Cb | |||
| minor sixth | | minor sixth | ||
|- | |||
|- | |||
| '''16''' | | '''16''' | ||
| '''884.3587''' | | '''884.3587''' | ||
| '''5/3''' | | '''5/3''' | ||
| | |||
| '''mosoctave''' | | '''mosoctave''' | ||
| '''E''' | |||
| '''perfect sixth''' | |||
| '''C''' | |||
| '''major sixth''' | | '''major sixth''' | ||
|- | |- | ||
| 17 | | 17 | ||
| 939.6311 | | 939.6311 | ||
| 31/18, 55/32 | |||
| 12/7, 19/11 | | 12/7, 19/11 | ||
| aug mos8ave | | aug mos8ave | ||
| E# | |||
| aug sixth | |||
| C# | |||
| supermajor sixth | | supermajor sixth | ||
|- | |- | ||
| 18 | | 18 | ||
| 994.9035 | | 994.9035 | ||
| 16/9 | | 16/9, 55/31 | ||
| 7/4 | |||
| min mos9th | | min mos9th | ||
| Fb | |||
| double-aug sixth, dim seventh | |||
| Cx, Dbb | |||
| minor seventh | | minor seventh | ||
|- | |- | ||
| 19 | | 19 | ||
| 1050.1760 | | 1050.1760 | ||
| 11/6 | | 11/6 | ||
| | |||
| maj mos9th | | maj mos9th | ||
| F | |||
| minor seventh | |||
| Db | |||
| neutral seventh | | neutral seventh | ||
|- | |- | ||
| 20 | | 20 | ||
| 1105.4484 | | 1105.4484 | ||
| 40/21, 17/9 | | 176/93, 125/66, 256/135 | ||
| 40/21, (27/14), 17/9 | |||
| min mos10th | | min mos10th | ||
| F#/Gb | |||
| major seventh | |||
| D | |||
| major seventh | | major seventh | ||
|- | |- | ||
| 21 | | 21 | ||
| 1160.7208 | | 1160.7208 | ||
| 88/45, 125/64 | |||
| 35/18, 43/22 | | 35/18, 43/22 | ||
| maj mos10th | | maj mos10th | ||
| G | |||
| aug seventh | |||
| D# | |||
| narrow octave | | narrow octave | ||
|- | |- | ||
| 22 | | 22 | ||
| 1215.9932 | | 1215.9932 | ||
| 200/99, 121/60, 125/62 | |||
| 2/1 | | 2/1 | ||
| dim mos11th | | dim mos11th | ||
| G#/Ab | |||
| minor octave | |||
| Eb | |||
| octave | | octave | ||
|} | |} | ||
These intervals are close to a few other related | These intervals are close to a few other related scales: | ||
{| class="wikitable left-all" | {| class="wikitable left-all" | ||
! | ! | ||
! | ! [[22edo]] | ||
! [[7ed5/4]] | ! [[7ed5/4]] | ||
!23ed18\17 | |||
! 16ed5/3 | ! 16ed5/3 | ||
! [[ | ! [[9ed4/3]] (Noleta) | ||
! [[43ed4]] | ! [[43ed4]] | ||
! [[34edt]] | ! [[34edt]] | ||
! | ! [[21edo]] | ||
|- | |- | ||
| 1 | | 1 | ||
| 54.54545 | | 54.54545 | ||
| 55.188 | | 55.188 | ||
| 55.2724 | |55.2429 | ||
| ''55.2724'' | |||
| 55.338 | | 55.338 | ||
| 55.8140 | | 55.8140 | ||
Line 198: | Line 276: | ||
| 109.0909 | | 109.0909 | ||
| 110.375 | | 110.375 | ||
| 110.5448 | |110.4859 | ||
| ''110.5448'' | |||
| 110.677 | | 110.677 | ||
| 111.6729 | | 111.6729 | ||
Line 207: | Line 286: | ||
| 163.6364 | | 163.6364 | ||
| 165.563 | | 165.563 | ||
| 165.8173 | |165.7288 | ||
| ''165.8173'' | |||
| 166.015 | | 166.015 | ||
| 167.4419 | | 167.4419 | ||
Line 216: | Line 296: | ||
| 218.1818 | | 218.1818 | ||
| 220.751 | | 220.751 | ||
| 221.0897 | |220.9718 | ||
| ''221.0897'' | |||
| 221.353 | | 221.353 | ||
| 223.2558 | | 223.2558 | ||
Line 225: | Line 306: | ||
| 272.7273 | | 272.7273 | ||
| 275.938 | | 275.938 | ||
| 276.3621 | |276.2147 | ||
| ''276.3621'' | |||
| 276.692 | | 276.692 | ||
| 279.0698 | | 279.0698 | ||
Line 234: | Line 316: | ||
| 327.2727 | | 327.2727 | ||
| 331.126 | | 331.126 | ||
| 331.6345 | |331.4576 | ||
| ''331.6345'' | |||
| 332.030 | | 332.030 | ||
| 334.8837 | | 334.8837 | ||
Line 243: | Line 326: | ||
| 381.8182 | | 381.8182 | ||
| 386.314 | | 386.314 | ||
| 386.9069 | |386.7006 | ||
| ''386.9069'' | |||
| 387.368 | | 387.368 | ||
| 390.6977 | | 390.6977 | ||
Line 252: | Line 336: | ||
| 436.3636 | | 436.3636 | ||
| 441.501 | | 441.501 | ||
| 442.1794 | |441.9435 | ||
| ''442.1794'' | |||
| 442.707 | | 442.707 | ||
| 446.5116 | | 446.5116 | ||
Line 261: | Line 346: | ||
| 490.9091 | | 490.9091 | ||
| 496.689 | | 496.689 | ||
| 497.4517 | |497.1865 | ||
| ''497.4517'' | |||
| 498.045 | | 498.045 | ||
| 502.3256 | | 502.3256 | ||
Line 270: | Line 356: | ||
| 545.5455 | | 545.5455 | ||
| 551.877 | | 551.877 | ||
| 552.7242 | |552.4294 | ||
| ''552.7242'' | |||
| 553.383 | | 553.383 | ||
| 558.1395 | | 558.1395 | ||
Line 279: | Line 366: | ||
| 600 | | 600 | ||
| 607.064 | | 607.064 | ||
| 607.9966 | |607.6723 | ||
| ''607.9966'' | |||
| 608.722 | | 608.722 | ||
| 613.9535 | | 613.9535 | ||
Line 288: | Line 376: | ||
| 654.5455 | | 654.5455 | ||
| 662.252 | | 662.252 | ||
| 663.269 | |662.9153 | ||
| ''663.269'' | |||
| 664.060 | | 664.060 | ||
| 669.7674 | | 669.7674 | ||
Line 297: | Line 386: | ||
| 709.0909 | | 709.0909 | ||
| 717.440 | | 717.440 | ||
| 718.5415 | |718.1582 | ||
| ''718.5415'' | |||
| 719.398 | | 719.398 | ||
| 725.5814 | | 725.5814 | ||
Line 306: | Line 396: | ||
| 763.6364 | | 763.6364 | ||
| 772.627 | | 772.627 | ||
| 773.8129 | |773.4011 | ||
| ''773.8129'' | |||
| 774.737 | | 774.737 | ||
| 781.3954 | | 781.3954 | ||
Line 315: | Line 406: | ||
| 818.1818 | | 818.1818 | ||
| 827.815 | | 827.815 | ||
| 829.0863 | |828.6441 | ||
| ''829.0863'' | |||
| 830.075 | | 830.075 | ||
| 837.7209 | | 837.7209 | ||
Line 324: | Line 416: | ||
| 872.7273 | | 872.7273 | ||
| 883.003 | | 883.003 | ||
| 884.3587 | |883.8870 | ||
| ''884.3587'' | |||
| 885.413 | | 885.413 | ||
| 893.0233 | | 893.0233 | ||
Line 340: | Line 433: | ||
| 1 | | 1 | ||
| 1\16 | | 1\16 | ||
| 1L | | 1L Ns | ||
|- | |- | ||
| 1 | | 1 | ||
Line 368: | Line 461: | ||
For the 2L 5s scale, the genchain is this: | For the 2L 5s scale, the genchain is this: | ||
{| class="wikitable center-all" | {| class="wikitable center-all" | ||
| F# | | F# | ||
| C# | | C# | ||
Line 375: | Line 467: | ||
| A# | | A# | ||
| E# | | E# | ||
| B | | B# | ||
| F | | F | ||
| C | | C | ||
Line 381: | Line 473: | ||
| D | | D | ||
| A | | A | ||
| E | | '''E''' | ||
| | | B | ||
| Fb | | Fb | ||
| Cb | | Cb | ||
Line 389: | Line 481: | ||
| Ab | | Ab | ||
| Eb | | Eb | ||
| | | Db | ||
| Fbb | | Fbb | ||
| Cbb | | Cbb | ||
| Gbb | | Gbb | ||
| Dbb | |||
|- | |- | ||
| A2 | | A2 | ||
Line 406: | Line 499: | ||
| M7 | | M7 | ||
| P4 | | P4 | ||
| P1 | | '''P1''' | ||
| P5 | | P5 | ||
| m2 | | m2 | ||
Line 420: | Line 513: | ||
| d7 | | d7 | ||
|} | |} | ||
== Commas == | |||
Depending on your mapping, 16ed5/3 can be said to temper a number of commas, including the [[diaschisma]], the [[marvel comma]], [[64/63|Archytas' comma]], and the [[jubilisma]], all discussed in the temperaments section. In addition, being an even division of the 5/3, it tempers the [[sensamagic comma]], as the half mosoctave is midway between [[9/7]] and [[35/27]]. This is analogous to the tritone in 2n edo systems. The [[keema]] is tempered due to the septimal interpretation of the diatonic sevenths, and the [[mothwellsma]] is tempered by two major mos3rds ([[7/6]]) resulting in an augmented mos5th ([[11/8]]). | |||
== Temperaments == | == Temperaments == | ||
Line 426: | Line 522: | ||
The diaschisma can also be tempered by taking 5 generators to mean a [[3/2]] ((<sup>4</sup>/<sub>3</sub>)<sup>5</sup>=(<sup>3</sup>/<sub>2</sub>)·(<sup>5</sup>/<sub>3</sub>)<sup>2</sup>), while the marvel comma can also be tempered with a stack of 3 generators, making a [[10/7]] ((<sup>4</sup>/<sub>3</sub>)<sup>3</sup>=(<sup>10</sup>/<sub>7</sub>)·(<sup>5</sup>/<sub>3</sub>)). | The diaschisma can also be tempered by taking 5 generators to mean a [[3/2]] ((<sup>4</sup>/<sub>3</sub>)<sup>5</sup>=(<sup>3</sup>/<sub>2</sub>)·(<sup>5</sup>/<sub>3</sub>)<sup>2</sup>), while the marvel comma can also be tempered with a stack of 3 generators, making a [[10/7]] ((<sup>4</sup>/<sub>3</sub>)<sup>3</sup>=(<sup>10</sup>/<sub>7</sub>)·(<sup>5</sup>/<sub>3</sub>)). | ||
The tempered marvel comma also means that the two large [[ | The tempered marvel comma also means that the two large [[tritone]]s ([[64/45|pental]] and [[10/7|septimal]]) are addressed by the same scale step. The tempered diaschisma, on the other hand, means that both pental tritones are also addressed by the same scale step. | ||
As 3 semitones make a period-reduced octave, and it alludes to | Both of the 7-limit approaches also temper Archytas' comma as a result of equating the [[16/9]] with [[7/4]], and the jubilisma ([[50/49]]) due to tritone equivalence. These are relatively large commas, given the step size (about half, and 7/11ths respectively). | ||
This shows the close relationships with [[srutal]] and [[pajara]] octave temperaments. In 16ed5/3's case, there is a close equivalence to [[22edo]]'s pajara tuning. | |||
As 3 semitones make a period-reduced octave, and it alludes to tritone tempering, [[User:Ayceman|I]] propose the name '''tristone''' for the basic [[Diaschismic family|diaschismic temperament]], based on the 16/15 to 6/5 relationship, as well as the following variants and extensions: | |||
=== Tristone === | === Tristone === | ||
Line 443: | Line 543: | ||
[[RMS temperament measures|RMS]] error: 2.228679 cents | [[RMS temperament measures|RMS]] error: 2.228679 cents | ||
[[ | [[Optimal ET sequence]]: 9ed5/3, 16ed5/3, 25ed5/3 | ||
==== Tridistone ==== | ==== Tridistone ==== | ||
[[Subgroup]]: 5/3.20/9.10/3.1000/189 | [[Subgroup]]: 5/3.20/9.10/3.1000/189 | ||
[[Comma]] list: 2048/2025, 225/224 | [[Comma]] list: 2048/2025, 225/224, 64/63, 50/49 | ||
[[POL2]] generator: ~5/4 = 389.6140 | [[POL2]] generator: ~5/4 = 389.6140 | ||
Line 458: | Line 558: | ||
[[RMS temperament measures|RMS]] error: 8.489179 cents | [[RMS temperament measures|RMS]] error: 8.489179 cents | ||
[[ | [[Optimal ET sequence]]: 9ed5/3, 16ed5/3 | ||
=== Metatristone === | === Metatristone === | ||
Line 473: | Line 573: | ||
[[RMS temperament measures|RMS]] error: 2.021819 cents | [[RMS temperament measures|RMS]] error: 2.021819 cents | ||
[[ | [[Optimal ET sequence]]: 9ed5/3, 16ed5/3, 25ed5/3 | ||
==== Metatridistone ==== | ==== Metatridistone ==== | ||
[[Subgroup]]: 5/3.20/9.5/2.250/63 | [[Subgroup]]: 5/3.20/9.5/2.250/63 | ||
[[Comma]] list: 2048/2025, 225/224 | [[Comma]] list: 2048/2025, 225/224, 64/63, 50/49 | ||
[[POL2]] generator: ~5/4 = 390.5430 | [[POL2]] generator: ~5/4 = 390.5430 | ||
Line 488: | Line 588: | ||
[[RMS temperament measures|RMS]] error: 7.910273 cents | [[RMS temperament measures|RMS]] error: 7.910273 cents | ||
[[ | [[Optimal ET sequence]]: 9ed5/3, 16ed5/3 | ||
[[ | |||
'''16ed5/3''' also supports [[Blackcomb]] temperament which is built on [[5/4]] and [[3/2]] in a very similar way to octave-repeating [[meantone]] but is less accurate. Blackcomb tempers out the comma [[250/243]], the amount by which 3 [[3/2]]'s exceed [[5/4]] sixth-reduced, in the 5/3.2.3 subgroup (equal to the [[5-limit]]). | |||
[[Category:Nonoctave]] | [[Category:Nonoctave]] | ||