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Cardinality | 8 (octatonic) |
---|---|
Pitch Class Set | {0,1,4,5,7,9,10,11} |
Forte Number | 8-Z15 |
Rotational Symmetry | none |
Reflection Axes | none |
Palindromic | no |
Chirality | yes enantiomorph: 2479 |
Hemitonia | 5 (multihemitonic) |
Cohemitonia | 3 (tricohemitonic) |
Imperfections | 3 |
Modes | 7 |
Prime? | no prime: 863 |
Deep Scale | no |
Interval Vector | 555553 |
Interval Spectrum | p5m5n5s5d5t3 |
Distribution Spectra | <1> = {1,2,3} <2> = {2,3,4} <3> = {3,4,5,6} <4> = {4,5,6,7,8} <5> = {6,7,8,9} <6> = {8,9,10} <7> = {9,10,11} |
Spectra Variation | 2.25 |
Maximally Even | no |
Maximal Area Set | no |
Interior Area | 2.616 |
Myhill Property | no |
Balanced | no |
Ridge Tones | none |
Propriety | Improper |
Heliotonic | no |
These are the common triads (major, minor, augmented and diminished) that you can create from members of this scale.
* Pitches are shown with C as the root
Triad Type | Triad* | Pitch Classes | Degree | Eccentricity | Closeness Centrality |
---|---|---|---|---|---|
Major Triads | C | {0,4,7} | 3 | 4 | 2 |
F | {5,9,0} | 2 | 4 | 2.18 | |
A | {9,1,4} | 4 | 4 | 1.82 | |
Minor Triads | em | {4,7,11} | 2 | 4 | 2.27 |
am | {9,0,4} | 3 | 4 | 1.91 | |
a♯m | {10,1,5} | 3 | 4 | 2 | |
Augmented Triads | C♯+ | {1,5,9} | 3 | 4 | 1.91 |
Diminished Triads | c♯° | {1,4,7} | 2 | 4 | 2.09 |
e° | {4,7,10} | 2 | 4 | 2.36 | |
g° | {7,10,1} | 2 | 4 | 2.27 | |
a♯° | {10,1,4} | 2 | 4 | 2.09 |
Above is a graph showing opportunities for parsimonious voice leading between triads*. Each line connects two triads that have two common tones, while the third tone changes by one generic scale step.
Diameter | 4 |
---|---|
Radius | 4 |
Self-Centered | yes |
Modes are the rotational transformation of this scale. Scale 3763 can be rotated to make 7 other scales. The 1st mode is itself.
2nd mode: Scale 3929 | ![]() | Aeolothyllic | |||
3rd mode: Scale 1003 | ![]() | Ionyryllic | |||
4th mode: Scale 2549 | ![]() | Rydyllic | |||
5th mode: Scale 1661 | ![]() | Gonyllic | |||
6th mode: Scale 1439 | ![]() | Rolyllic | |||
7th mode: Scale 2767 | ![]() | Katydyllic | |||
8th mode: Scale 3431 | ![]() | Zyptyllic |
The prime form of this scale is Scale 863
Scale 863 | ![]() | Pyryllic |
The octatonic modal family [3763, 3929, 1003, 2549, 1661, 1439, 2767, 3431] (Forte: 8-Z15) is the complement of the tetratonic modal family [83, 773, 1217, 2089] (Forte: 4-Z15)
The inverse of a scale is a reflection using the root as its axis. The inverse of 3763 is 2479
Scale 2479 | ![]() | Harmonic and Neapolitan Minor Mixed |
Only scales that are chiral will have an enantiomorph. Scale 3763 is chiral, and its enantiomorph is scale 2479
Scale 2479 | ![]() | Harmonic and Neapolitan Minor Mixed |
T0 | 3763 | T0I | 2479 | |||||
T1 | 3431 | T1I | 863 | |||||
T2 | 2767 | T2I | 1726 | |||||
T3 | 1439 | T3I | 3452 | |||||
T4 | 2878 | T4I | 2809 | |||||
T5 | 1661 | T5I | 1523 | |||||
T6 | 3322 | T6I | 3046 | |||||
T7 | 2549 | T7I | 1997 | |||||
T8 | 1003 | T8I | 3994 | |||||
T9 | 2006 | T9I | 3893 | |||||
T10 | 4012 | T10I | 3691 | |||||
T11 | 3929 | T11I | 3287 |
These are other scales that are similar to this one, created by adding a tone, removing a tone, or moving one note up or down a semitone.
Scale 3761 | ![]() | Raga Madhuri | ||
Scale 3765 | ![]() | Dominant Bebop | ||
Scale 3767 | ![]() | Chromatic Bebop | ||
Scale 3771 | ![]() | Stophygic | ||
Scale 3747 | ![]() | Myrian | ||
Scale 3755 | ![]() | Phryryllic | ||
Scale 3731 | ![]() | Aeryrian | ||
Scale 3795 | ![]() | Epothyllic | ||
Scale 3827 | ![]() | Bodygic | ||
Scale 3635 | ![]() | Katygian | ||
Scale 3699 | ![]() | Galyllic | ||
Scale 3891 | ![]() | Ryryllic | ||
Scale 4019 | ![]() | Lonygic | ||
Scale 3251 | ![]() | Mela Hatakambari | ||
Scale 3507 | ![]() | Maqam Hijaz | ||
Scale 2739 | ![]() | Mela Suryakanta | ||
Scale 1715 | ![]() | Harmonic Minor Inverse |
This scale analysis was created by Ian Ring, Canadian Composer of works for Piano, and total music theory nerd. The software used to generate this analysis is an open source project at GitHub. Scale notation generated by VexFlow, graph visualization by Graphviz, and MIDI playback by MIDI.js. Some scale names used on this and other pages are ©2005 William Zeitler (http://allthescales.org) used with permission.
Pitch spelling algorithm employed here is adapted from a method by Uzay Bora, Baris Tekin Tezel, and Alper Vahaplar. (An algorithm for spelling the pitches of any musical scale) Contact authors Patent owner: Dokuz Eylül University, Used with Permission. Contact TTO
Tons of background resources contributed to the production of this summary; for a list of these peruse this Bibliography. Special thanks to Richard Repp for helping with technical accuracy.