User:Xenllium/Xenllium's circulating scales
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Below are listed circulating scales introduced by Xenllium.
Xentwelve
Xentwelve is a 12-tone circulating scale based on 12 equal temperament. In summary, it is close to 1/3-comma meantone in the natural keys and Pythagorean tuning in the remote keys. The generator is a perfect fifth, which comes in three sizes, with eight pure fifths (at C–G, C♯–G♯, E♭–B♭, E–B, F–C, F♯–C♯, B♭–F and B–F♯, frequency ratio 3/2), three 1/3-comma meantone fifths (at D–A, G–D and A–E, frequency ratio (10/3)^(1/3)), and one narrow schismic fifth (at G♯–D♯ (A♭–E♭), frequency ratio 16384/10935). It derives two major thirds exact 5/4 (at C–E and G–B) and one minor third exact 6/5 (at E–G).
! xentwelve_a.scl ! Xentwelve, Xenllium's 12-tone circulating scale, Central A 12 ! 104.56252207087 196.74123853187 308.47252380165 400.65124026264 505.21376233352 602.60752120549 694.78623766648 806.51752293626 898.69623939726 1010.42752466704 1102.60624112803 1200.
Fifth (7-step) | Fourth (5-step) | ||||||
---|---|---|---|---|---|---|---|
Occurrences | Ratio | Cents | Error from 3/2 |
Occurrences | Ratio | Cents | Error from 4/3 |
D–A G–D A–E |
[math]\displaystyle{ \sqrt{10/3} }[/math] | 694.78624 | −7.16876 | D–G E–A A–D |
[math]\displaystyle{ \sqrt{12/5} }[/math] | 505.21376 | +7.16876 |
G♯–D♯ (A♭–E♭) |
[math]\displaystyle{ 16384/10935 }[/math] | 700.00128 | −1.95372 | D♯–G♯ (E♭–A♭) |
[math]\displaystyle{ 10935/8192 }[/math] | 499.99872 | +1.95372 |
C–G C♯–G♯ E♭–B♭ E–B F–C F♯–C♯ B♭–F B–F♯ |
[math]\displaystyle{ 3/2 }[/math] | 701.95500 | +0.00000 | C–F C♯–F♯ F–B♭ F♯–B G–C G♯–C♯ B♭–E♭ B–E |
[math]\displaystyle{ 4/3 }[/math] | 498.04500 | +0.00000 |
Major third (4-step) | Minor third (3-step) | ||||||
---|---|---|---|---|---|---|---|
Occurrences | Ratio | Cents | Error from 5/4 |
Occurrences | Ratio | Cents | Error from 6/5 |
C–E G–B |
[math]\displaystyle{ 5/4 }[/math] | 386.31371 | +0.00000 | C–E♭ C♯–E G–B♭ G♯–B |
[math]\displaystyle{ 32/27 }[/math] | 294.13500 | −21.50629 |
D–F♯ F–A |
[math]\displaystyle{ \sqrt{(45/32)^{2}} }[/math] | 393.48248 | +7.16876 | ||||
A–C♯ B♭–D |
[math]\displaystyle{ \sqrt{32805/16384} }[/math] | 400.65124 | +14.33753 | E♭–G♭ F–A♭ B♭–D♭ |
[math]\displaystyle{ 1215/1024 }[/math] | 296.08872 | −19.55257 |
D♭–F G♭–B♭ A♭–C B–D♯ |
[math]\displaystyle{ 405/256 }[/math] | 405.86628 | +19.55257 | ||||
D–F F♯–A |
[math]\displaystyle{ \sqrt{2048/1215} }[/math] | 301.30376 | −14.33753 | ||||
A–C B–D |
[math]\displaystyle{ \sqrt{128/75} }[/math] | 308.47252 | −7.16876 | ||||
E♭–G E–G♯ |
[math]\displaystyle{ 81/64 }[/math] | 407.82000 | +21.50629 | ||||
E–G | [math]\displaystyle{ 6/5 }[/math] | 315.64129 | +0.00000 |