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Scale 2955: "Thorian"

Scale 2955: Thorian, Ian Ring Music Theory

Common Names



Cardinality7 (heptatonic)
Pitch Class Set{0,1,3,7,8,9,11}
Forte Number7-13
Rotational Symmetrynone
Reflection Axesnone
enantiomorph: 2619
Hemitonia4 (multihemitonic)
Cohemitonia2 (dicohemitonic)
prime: 375
Deep Scaleno
Interval Vector443532
Interval Spectrump3m5n3s4d4t2
Distribution Spectra<1> = {1,2,4}
<2> = {2,3,5,6}
<3> = {4,6,7}
<4> = {5,6,8}
<5> = {6,7,9,10}
<6> = {8,10,11}
Spectra Variation2.857
Maximally Evenno
Myhill Propertyno
Ridge Tonesnone

Harmonic Chords


Modes are the rotational transformation of this scale. Scale 2955 can be rotated to make 6 other scales. The 1st mode is itself.

2nd mode:
Scale 3525
Scale 3525: Zocrian, Ian Ring Music TheoryZocrian
3rd mode:
Scale 1905
Scale 1905: Katacrian, Ian Ring Music TheoryKatacrian
4th mode:
Scale 375
Scale 375: Sodian, Ian Ring Music TheorySodianThis is the prime mode
5th mode:
Scale 2235
Scale 2235: Bathian, Ian Ring Music TheoryBathian
6th mode:
Scale 3165
Scale 3165: Mylian, Ian Ring Music TheoryMylian
7th mode:
Scale 1815
Scale 1815: Godian, Ian Ring Music TheoryGodian


The prime form of this scale is Scale 375

Scale 375Scale 375: Sodian, Ian Ring Music TheorySodian


The heptatonic modal family [2955, 3525, 1905, 375, 2235, 3165, 1815] (Forte: 7-13) is the complement of the pentatonic modal family [279, 369, 1809, 2187, 3141] (Forte: 5-13)


The inverse of a scale is a reflection using the root as its axis. The inverse of 2955 is 2619

Scale 2619Scale 2619: Ionyrian, Ian Ring Music TheoryIonyrian


Only scales that are chiral will have an enantiomorph. Scale 2955 is chiral, and its enantiomorph is scale 2619

Scale 2619Scale 2619: Ionyrian, Ian Ring Music TheoryIonyrian


T0 2955  T0I 2619
T1 1815  T1I 1143
T2 3630  T2I 2286
T3 3165  T3I 477
T4 2235  T4I 954
T5 375  T5I 1908
T6 750  T6I 3816
T7 1500  T7I 3537
T8 3000  T8I 2979
T9 1905  T9I 1863
T10 3810  T10I 3726
T11 3525  T11I 3357

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 2953Scale 2953: Ionylimic, Ian Ring Music TheoryIonylimic
Scale 2957Scale 2957: Thygian, Ian Ring Music TheoryThygian
Scale 2959Scale 2959: Dygyllic, Ian Ring Music TheoryDygyllic
Scale 2947Scale 2947, Ian Ring Music Theory
Scale 2951Scale 2951, Ian Ring Music Theory
Scale 2963Scale 2963: Bygian, Ian Ring Music TheoryBygian
Scale 2971Scale 2971: Aeolynyllic, Ian Ring Music TheoryAeolynyllic
Scale 2987Scale 2987: Neapolitan Major and Minor Mixed, Ian Ring Music TheoryNeapolitan Major and Minor Mixed
Scale 3019Scale 3019, Ian Ring Music Theory
Scale 2827Scale 2827, Ian Ring Music Theory
Scale 2891Scale 2891: Phrogian, Ian Ring Music TheoryPhrogian
Scale 2699Scale 2699: Sythimic, Ian Ring Music TheorySythimic
Scale 2443Scale 2443: Panimic, Ian Ring Music TheoryPanimic
Scale 3467Scale 3467: Katonian, Ian Ring Music TheoryKatonian
Scale 3979Scale 3979: Dynyllic, Ian Ring Music TheoryDynyllic
Scale 907Scale 907: Tholimic, Ian Ring Music TheoryTholimic
Scale 1931Scale 1931: Stogian, Ian Ring Music TheoryStogian

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, and MIDI playback by MIDI.js. Bibliography