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 | ||
| 31/24, 40/31 | |||
| 9/7, 35/27, 22/17 | | 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 | ||
| 176/93, 125/66, 256/135 | |||
| 40/21, (27/14), 17/9 | | 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 422: | Line 515: | ||
== Commas == | == Commas == | ||
Depending on your mapping, 16ed5/3 can be said to temper a number of commas, including the | 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 429: | 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. | ||
Both of the 7-limit approaches also temper Archytas' comma | 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 [[ | 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: | 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: | ||
Line 450: | 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 ==== | ||
Line 465: | 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 480: | 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 ==== | ||
Line 495: | 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]] | ||
Latest revision as of 19:20, 1 August 2025
← 15ed5/3 | 16ed5/3 | 17ed5/3 → |
16ed5/3 is the equal division of the just major sixth into sixteen parts of 55.2724 cents each, corresponding to 21.7106edo. It is very closely related to the 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 just fifth and 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
Harmonic | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Error | Absolute (¢) | +16.0 | -22.7 | -23.3 | -22.7 | -6.7 | +2.8 | -7.3 | +9.9 | -6.7 | -5.9 | +9.3 |
Relative (%) | +28.9 | -41.1 | -42.1 | -41.1 | -12.1 | +5.1 | -13.2 | +17.9 | -12.1 | -10.6 | +16.8 | |
Steps (reduced) |
22 (6) |
34 (2) |
43 (11) |
50 (2) |
56 (8) |
61 (13) |
65 (1) |
69 (5) |
72 (8) |
75 (11) |
78 (14) |
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). 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.
Degree | 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 |
---|---|---|---|---|---|---|---|---|
0 | 0.0000 | 1/1 | unison | E | unison | C | unison | |
1 | 55.2724 | 31/30, 32/31, 33/32 | 36/35 | aug unison | E# | aug unison | C# | quartertone |
2 | 110.5448 | 16/15, 33/31 | 21/20 | min mos2nd | Fb | double-aug unison, dim second | Cx, Dbb | minor second |
3 | 165.8173 | 11/10 | maj mos2nd | F | minor second | Db | neutral second | |
4 | 221.0897 | 25/22 | 8/7, 17/15 | min mos3rd | F#/Gb | major second | D | major second |
5 | 276.3621 | 75/64, 88/75 | 7/6, 20/17 | maj mos3rd | G | aug second | D# | subminor third |
6 | 331.6345 | 40/33, 75/62 | 6/5, 17/14 | dim mos4th | G#/Ab | minor third | Eb | minor third |
7 | 386.9069 | 5/4 | perf mos4th | A | major third | E | major third | |
8 | 442.1794 | 31/24, 40/31 | 9/7, 35/27, 22/17 | aug mos4th | A#/Bb | aug third | E# | supermajor third |
9 | 497.4517 | 4/3 | perf mos5th | B | dim fourth | Fb | just fourth | |
10 | 552.7242 | 11/8, 62/45 | 25/18, 18/13 | aug mos5th | B# | perfect fourth | F | wide fourth |
11 | 607.9966 | 44/31, 64/45 | 10/7, 17/12 | min mos6th | Cb | aug fourth | F# | large tritone |
12 | 663.2690 | 22/15 | 72/49 | maj mos6th | C | dim fifth | Gb | narrow fifth |
13 | 718.5415 | 50/33 | 3/2 | min mos7th | C#/Db | perfect fifth | G | acute fifth |
14 | 773.8129 | 25/16 | maj mos7th | D | aug fifth | G# | subminor sixth | |
15 | 829.0863 | 50/31 | 8/5, 13/8 | dim mos8ave | D#/Eb | dim sixth | Cb | minor sixth |
16 | 884.3587 | 5/3 | mosoctave | E | perfect sixth | C | major sixth | |
17 | 939.6311 | 31/18, 55/32 | 12/7, 19/11 | aug mos8ave | E# | aug sixth | C# | supermajor sixth |
18 | 994.9035 | 16/9, 55/31 | 7/4 | min mos9th | Fb | double-aug sixth, dim seventh | Cx, Dbb | minor seventh |
19 | 1050.1760 | 11/6 | maj mos9th | F | minor seventh | Db | neutral seventh | |
20 | 1105.4484 | 176/93, 125/66, 256/135 | 40/21, (27/14), 17/9 | min mos10th | F#/Gb | major seventh | D | major seventh |
21 | 1160.7208 | 88/45, 125/64 | 35/18, 43/22 | maj mos10th | G | aug seventh | D# | narrow octave |
22 | 1215.9932 | 200/99, 121/60, 125/62 | 2/1 | dim mos11th | G#/Ab | minor octave | Eb | octave |
These intervals are close to a few other related scales:
22edo | 7ed5/4 | 23ed18\17 | 16ed5/3 | 9ed4/3 (Noleta) | 43ed4 | 34edt | 21edo | |
---|---|---|---|---|---|---|---|---|
1 | 54.54545 | 55.188 | 55.2429 | 55.2724 | 55.338 | 55.8140 | 55.9399 | 57.1429 |
2 | 109.0909 | 110.375 | 110.4859 | 110.5448 | 110.677 | 111.6729 | 111.8797 | 114.2857 |
3 | 163.6364 | 165.563 | 165.7288 | 165.8173 | 166.015 | 167.4419 | 167.8196 | 171.4286 |
4 | 218.1818 | 220.751 | 220.9718 | 221.0897 | 221.353 | 223.2558 | 223.7594 | 228.5714 |
5 | 272.7273 | 275.938 | 276.2147 | 276.3621 | 276.692 | 279.0698 | 279.6993 | 285.7143 |
6 | 327.2727 | 331.126 | 331.4576 | 331.6345 | 332.030 | 334.8837 | 335.6391 | 342.8571 |
7 | 381.8182 | 386.314 | 386.7006 | 386.9069 | 387.368 | 390.6977 | 391.5790 | 400 |
8 | 436.3636 | 441.501 | 441.9435 | 442.1794 | 442.707 | 446.5116 | 447.5188 | 457.1429 |
9 | 490.9091 | 496.689 | 497.1865 | 497.4517 | 498.045 | 502.3256 | 503.4587 | 514.2857 |
10 | 545.5455 | 551.877 | 552.4294 | 552.7242 | 553.383 | 558.1395 | 559.3985 | 571.4286 |
11 | 600 | 607.064 | 607.6723 | 607.9966 | 608.722 | 613.9535 | 615.3384 | 628.5714 |
12 | 654.5455 | 662.252 | 662.9153 | 663.269 | 664.060 | 669.7674 | 671.2782 | 685.7143 |
13 | 709.0909 | 717.440 | 718.1582 | 718.5415 | 719.398 | 725.5814 | 727.2181 | 742.8571 |
14 | 763.6364 | 772.627 | 773.4011 | 773.8129 | 774.737 | 781.3954 | 783.1579 | 800 |
15 | 818.1818 | 827.815 | 828.6441 | 829.0863 | 830.075 | 837.7209 | 839.0978 | 857.1429 |
16 | 872.7273 | 883.003 | 883.8870 | 884.3587 | 885.413 | 893.0233 | 895.0376 | 914.2857 |
MOS Scales
16edVI supports the same MOS scales as 16edo, as such it contains the following scales:
Periods per octave |
Generator | Pattern |
---|---|---|
1 | 1\16 | 1L Ns |
1 | 3\16 | 1L 4s, 5L 1s |
1 | 5\16 | 3L 4s, 3L 7s |
1 | 7\16 | 2L 5s, 7L 2s |
2 | 1\16 | 2L 8s, 2L 10s, 2L 12s |
2 | 3\16 | 4L 2s, 6L 4s |
4 | 1\16 | 4L 4s, 4L 8s |
For the 2L 5s scale, the genchain is this:
F# | C# | G# | D# | A# | E# | B# | F | C | G | D | A | E | B | Fb | Cb | Gb | Db | Ab | Eb | Db | Fbb | Cbb | Gbb | Dbb |
A2 | A6 | A3 | A7 | A4 | A1 | A5 | M2 | M6 | M3 | M7 | P4 | P1 | P5 | m2 | m6 | m3 | m7 | d4 | d1 | d5 | d2 | d6 | d3 | d7 |
Commas
Depending on your mapping, 16ed5/3 can be said to temper a number of commas, including the diaschisma, the marvel comma, 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
The 2L 5s scale is generated by a very accurate 4/3, such that two of them wind up on a near exact 16/9, which period-reduces to 16/15 (the minor mossecond). This interval taken 2 times is approximated by an 8/7, and taken 3 times is approximated by a 6/5 (or 2/1 in the next mosoctave). These 2 equivalencies result in two tempered commas: the marvel comma - 225/224 ((16/15)2=(8/7)), and the diaschisma - 2048/2025 ((16/15)3=(6/5)).
The diaschisma can also be tempered by taking 5 generators to mean a 3/2 ((4/3)5=(3/2)·(5/3)2), while the marvel comma can also be tempered with a stack of 3 generators, making a 10/7 ((4/3)3=(10/7)·(5/3)).
The tempered marvel comma also means that the two large tritones (pental and 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.
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, I propose the name tristone for the basic diaschismic temperament, based on the 16/15 to 6/5 relationship, as well as the following variants and extensions:
Tristone
Subgroup: 5/3.20/9.10/3
Comma list: 2048/2025
POL2 generator: ~5/4 = 389.8224
Mapping: [⟨1 2 5], ⟨0 -1 -6]]
TE complexity: 1.988720
RMS error: 2.228679 cents
Optimal ET sequence: 9ed5/3, 16ed5/3, 25ed5/3
Tridistone
Subgroup: 5/3.20/9.10/3.1000/189
Comma list: 2048/2025, 225/224, 64/63, 50/49
POL2 generator: ~5/4 = 389.6140
Mapping: [⟨1 2 5 5], ⟨0 -1 -6 -4]]
TE complexity: 1.724923
RMS error: 8.489179 cents
Optimal ET sequence: 9ed5/3, 16ed5/3
Metatristone
Subgroup: 5/3.20/9.5/2
Comma list: 2048/2025
POL2 generator: ~5/4 = 390.5180
Mapping: [⟨1 2 4], ⟨0 -1 -5]]
TE complexity: 2.192193
RMS error: 2.021819 cents
Optimal ET sequence: 9ed5/3, 16ed5/3, 25ed5/3
Metatridistone
Subgroup: 5/3.20/9.5/2.250/63
Comma list: 2048/2025, 225/224, 64/63, 50/49
POL2 generator: ~5/4 = 390.5430
Mapping: [⟨1 2 4 4], ⟨0 -1 -5 -3]]
TE complexity: 1.895168
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).