16ed5/3: Difference between revisions
m →Intervals: Table navigation enhancements |
m Removing from Category:Edonoi using Cat-a-lot |
||
(32 intermediate revisions by 9 users not shown) | |||
Line 1: | Line 1: | ||
'''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 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). | 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''' | | '''unison''' | ||
| '''E''' | |||
| '''unison''' | |||
| '''C''' | |||
| '''unison''' | | '''unison''' | ||
|- | |- | ||
| 1 | | 1 | ||
| 55.2724 | | 55.2724 | ||
| | | 31/30, 32/31, 33/32 | ||
| 36/35 | |||
| aug unison | | aug unison | ||
| E# | | E# | ||
| 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" | ||
! | ! | ||
Line 182: | Line 258: | ||
!23ed18\17 | !23ed18\17 | ||
! 16ed5/3 | ! 16ed5/3 | ||
! [[ | ! [[9ed4/3]] (Noleta) | ||
! [[43ed4]] | ! [[43ed4]] | ||
! [[34edt]] | ! [[34edt]] | ||
Line 357: | Line 433: | ||
| 1 | | 1 | ||
| 1\16 | | 1\16 | ||
| 1L | | 1L Ns | ||
|- | |- | ||
| 1 | | 1 | ||
Line 439: | 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 446: | 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 467: | 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 482: | 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 497: | 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 512: | 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]] | ||