The Exciting Universe Of Music Theory
presents

more than you ever wanted to know about...

Scale 569: "Mothitonic"

Scale 569: Mothitonic, Ian Ring Music Theory

Bracelet Diagram

The bracelet shows tones that are in this scale, starting from the top (12 o'clock), going clockwise in ascending semitones. The "i" icon marks imperfect tones that do not have a tone a fifth above. Dotted lines indicate axes of symmetry.

Tonnetz Diagram

Tonnetz diagrams are popular in Neo-Riemannian theory. Notes are arranged in a lattice where perfect 5th intervals are from left to right, major third are northeast, and major 6th intervals are northwest. Other directions are inverse of their opposite. This diagram helps to visualize common triads (they're triangles) and circle-of-fifth relationships (horizontal lines).

Common Names

Zeitler
Mothitonic
Dozenal
Didian

Analysis

Cardinality

Cardinality is the count of how many pitches are in the scale.

5 (pentatonic)

Pitch Class Set

The tones in this scale, expressed as numbers from 0 to 11

{0,3,4,5,9}

Forte Number

A code assigned by theorist Allen Forte, for this pitch class set and all of its transpositional (rotation) and inversional (reflection) transformations.

5-Z38

Rotational Symmetry

Some scales have rotational symmetry, sometimes known as "limited transposition". If there are any rotational symmetries, these are the intervals of periodicity.

none

Reflection Axes

If a scale has an axis of reflective symmetry, then it can transform into itself by inversion. It also implies that the scale has Ridge Tones. Notably an axis of reflection can occur directly on a tone or half way between two tones.

none

Palindromicity

A palindromic scale has the same pattern of intervals both ascending and descending.

no

Chirality

A chiral scale can not be transformed into its inverse by rotation. If a scale is chiral, then it has an enantiomorph.

yes
enantiomorph: 905

Hemitonia

A hemitone is two tones separated by a semitone interval. Hemitonia describes how many such hemitones exist.

2 (dihemitonic)

Cohemitonia

A cohemitone is an instance of two adjacent hemitones. Cohemitonia describes how many such cohemitones exist.

1 (uncohemitonic)

Imperfections

An imperfection is a tone which does not have a perfect fifth above it in the scale. This value is the quantity of imperfections in this scale.

3

Modes

Modes are the rotational transformations of this scale. This number does not include the scale itself, so the number is usually one less than its cardinality; unless there are rotational symmetries then there are even fewer modes.

4

Prime Form

Describes if this scale is in prime form, using the Rahn/Ring formula.

no
prime: 295

Generator

Indicates if the scale can be constructed using a generator, and an origin.

none

Deep Scale

A deep scale is one where the interval vector has 6 different digits.

no

Interval Structure

Defines the scale as the sequence of intervals between one tone and the next.

[3, 1, 1, 4, 3]

Interval Vector

Describes the intervallic content of the scale, read from left to right as the number of occurences of each interval size from semitone, up to six semitones.

<2, 1, 2, 2, 2, 1>

Interval Spectrum

The same as the Interval Vector, but expressed in a syntax used by Howard Hanson.

p2m2n2sd2t

Distribution Spectra

Describes the specific interval sizes that exist for each generic interval size. Each generic <g> has a spectrum {n,...}. The Spectrum Width is the difference between the highest and lowest values in each spectrum.

<1> = {1,3,4}
<2> = {2,4,5,6,7}
<3> = {5,6,7,8,10}
<4> = {8,9,11}

Spectra Variation

Determined by the Distribution Spectra; this is the sum of all spectrum widths divided by the scale cardinality.

3.2

Maximally Even

A scale is maximally even if the tones are optimally spaced apart from each other.

no

Maximal Area Set

A scale is a maximal area set if a polygon described by vertices dodecimetrically placed around a circle produces the maximal interior area for scales of the same cardinality. All maximally even sets have maximal area, but not all maximal area sets are maximally even.

no

Interior Area

Area of the polygon described by vertices placed for each tone of the scale dodecimetrically around a unit circle, ie a circle with radius of 1.

1.933

Polygon Perimeter

Perimeter of the polygon described by vertices placed for each tone of the scale dodecimetrically around a unit circle.

5.596

Myhill Property

A scale has Myhill Property if the Interval Spectra has exactly two specific intervals for every generic interval.

no

Balanced

A scale is balanced if the distribution of its tones would satisfy the "centrifuge problem", ie are placed such that it would balance on its centre point.

no

Ridge Tones

Ridge Tones are those that appear in all transpositions of a scale upon the members of that scale. Ridge Tones correspond directly with axes of reflective symmetry.

none

Propriety

Also known as Rothenberg Propriety, named after its inventor. Propriety describes whether every specific interval is uniquely mapped to a generic interval. A scale is either "Proper", "Strictly Proper", or "Improper".

Improper

Heteromorphic Profile

Defined by Norman Carey (2002), the heteromorphic profile is an ordered triple of (c, a, d) where c is the number of contradictions, a is the number of ambiguities, and d is the number of differences. When c is zero, the scale is Proper. When a is also zero, the scale is Strictly Proper.

(9, 5, 36)

Common Triads

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 TypeTriad*Pitch ClassesDegreeEccentricityCloseness Centrality
Major TriadsF{5,9,0}121
Minor Triadsam{9,0,4}210.67
Diminished Triads{9,0,3}121
Parsimonious Voice Leading Between Common Triads of Scale 569. Created by Ian Ring ©2019 F F am am F->am a°->am

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.

Diameter2
Radius1
Self-Centeredno
Central Verticesam
Peripheral VerticesF, a°

Modes

Modes are the rotational transformation of this scale. Scale 569 can be rotated to make 4 other scales. The 1st mode is itself.

2nd mode:
Scale 583
Scale 583: Aeritonic, Ian Ring Music TheoryAeritonic
3rd mode:
Scale 2339
Scale 2339: Raga Kshanika, Ian Ring Music TheoryRaga Kshanika
4th mode:
Scale 3217
Scale 3217: Molitonic, Ian Ring Music TheoryMolitonic
5th mode:
Scale 457
Scale 457: Staptitonic, Ian Ring Music TheoryStaptitonic

Prime

The prime form of this scale is Scale 295

Scale 295Scale 295: Gyritonic, Ian Ring Music TheoryGyritonic

Complement

The pentatonic modal family [569, 583, 2339, 3217, 457] (Forte: 5-Z38) is the complement of the heptatonic modal family [439, 1763, 1819, 2267, 2929, 2957, 3181] (Forte: 7-Z38)

Inverse

The inverse of a scale is a reflection using the root as its axis. The inverse of 569 is 905

Scale 905Scale 905: Bylitonic, Ian Ring Music TheoryBylitonic

Enantiomorph

Only scales that are chiral will have an enantiomorph. Scale 569 is chiral, and its enantiomorph is scale 905

Scale 905Scale 905: Bylitonic, Ian Ring Music TheoryBylitonic

Transformations:

In the abbreviation, the subscript number after "T" is the number of semitones of tranposition, "M" means the pitch class is multiplied by 5, and "I" means the result is inverted. Operation is an identical way to express the same thing; the syntax is <a,b> where each tone of the set x is transformed by the equation y = ax + b

Abbrev Operation Result Abbrev Operation Result
T0 <1,0> 569       T0I <11,0> 905
T1 <1,1> 1138      T1I <11,1> 1810
T2 <1,2> 2276      T2I <11,2> 3620
T3 <1,3> 457      T3I <11,3> 3145
T4 <1,4> 914      T4I <11,4> 2195
T5 <1,5> 1828      T5I <11,5> 295
T6 <1,6> 3656      T6I <11,6> 590
T7 <1,7> 3217      T7I <11,7> 1180
T8 <1,8> 2339      T8I <11,8> 2360
T9 <1,9> 583      T9I <11,9> 625
T10 <1,10> 1166      T10I <11,10> 1250
T11 <1,11> 2332      T11I <11,11> 2500
Abbrev Operation Result Abbrev Operation Result
T0M <5,0> 779      T0MI <7,0> 2585
T1M <5,1> 1558      T1MI <7,1> 1075
T2M <5,2> 3116      T2MI <7,2> 2150
T3M <5,3> 2137      T3MI <7,3> 205
T4M <5,4> 179      T4MI <7,4> 410
T5M <5,5> 358      T5MI <7,5> 820
T6M <5,6> 716      T6MI <7,6> 1640
T7M <5,7> 1432      T7MI <7,7> 3280
T8M <5,8> 2864      T8MI <7,8> 2465
T9M <5,9> 1633      T9MI <7,9> 835
T10M <5,10> 3266      T10MI <7,10> 1670
T11M <5,11> 2437      T11MI <7,11> 3340

The transformations that map this set to itself are: T0

Nearby Scales:

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 571Scale 571: Kynimic, Ian Ring Music TheoryKynimic
Scale 573Scale 573: Saptimic, Ian Ring Music TheorySaptimic
Scale 561Scale 561: Phratic, Ian Ring Music TheoryPhratic
Scale 565Scale 565: Aeolyphritonic, Ian Ring Music TheoryAeolyphritonic
Scale 553Scale 553: Rothic 2, Ian Ring Music TheoryRothic 2
Scale 537Scale 537: Atuian, Ian Ring Music TheoryAtuian
Scale 601Scale 601: Bycritonic, Ian Ring Music TheoryBycritonic
Scale 633Scale 633: Kydimic, Ian Ring Music TheoryKydimic
Scale 697Scale 697: Lagimic, Ian Ring Music TheoryLagimic
Scale 825Scale 825: Thyptimic, Ian Ring Music TheoryThyptimic
Scale 57Scale 57: Ahoian, Ian Ring Music TheoryAhoian
Scale 313Scale 313: Goritonic, Ian Ring Music TheoryGoritonic
Scale 1081Scale 1081: Goxian, Ian Ring Music TheoryGoxian
Scale 1593Scale 1593: Zogimic, Ian Ring Music TheoryZogimic
Scale 2617Scale 2617: Pylimic, Ian Ring Music TheoryPylimic

This scale analysis was created by Ian Ring, Canadian Composer of works for Piano, and total music theory nerd. Scale notation generated by VexFlow, graph visualization by Graphviz, and MIDI playback by MIDI.js. All other diagrams and visualizations are © Ian Ring. 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, and George Howlett for assistance with the Carnatic ragas.