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Scale 1991

Scale 1991, Ian Ring Music Theory
iii

i = imperfections

Tones8 (octatonic)
Pitch Class Set{0,1,2,6,7,8,9,10}
Forte Number8-5
Rotational Symmetrynone
Palindromicno
Hemitonia6 (multihemitonic)
Cohemitonia4 (multicohemitonic)
Imperfections3
Modes7
Prime?no
prime: 479
Chiralityyes
enantiomorph: 3197
Deep Scaleno
Interval Vector654553
Interval Spectrump5m5n4s5d6t3
Distribution Spectra<1> = {1,2,4}
<2> = {2,3,5}
<3> = {3,4,6}
<4> = {4,5,7,8}
<5> = {6,8,9}
<6> = {7,9,10}
<7> = {8,10,11}
Spectra Variation2.75
Myhill Propertyno
Balancedno
Coherenceno
Heliotonicno

Modes

Modes are the rotational transformation of this scale. Scale 1991 can be rotated to make 7 other scales. The 1st mode is itself.

2nd mode:
Scale 3043
Scale 3043, Ian Ring Music Theory
3rd mode:
Scale 3569
Scale 3569, Ian Ring Music Theory
4th mode:
Scale 479
Scale 479, Ian Ring Music TheoryThis is the prime mode
5th mode:
Scale 2287
Scale 2287, Ian Ring Music Theory
6th mode:
Scale 3191
Scale 3191, Ian Ring Music Theory
7th mode:
Scale 3643
Scale 3643, Ian Ring Music Theory
8th mode:
Scale 3869
Scale 3869, Ian Ring Music Theory

Prime

The prime form of this scale is Scale 479

Scale 479Scale 479, Ian Ring Music Theory

Negative

The octatonic modal family [1991, 3043, 3569, 479, 2287, 3191, 3643, 3869] is the negative of the tetratonic modal family [71, 449, 2083, 3089]

Inverse

The inverse of a scale is a reflection using the root as its axis. The inverse of 1991 is 3197

Scale 3197Scale 3197, Ian Ring Music Theory

Enantiomorph

Only scales that are chiral will have an enantiomorph. Scale 1991 is chiral, and its enantiomorph is scale 3197

Scale 3197Scale 3197, Ian Ring Music Theory

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 1989Scale 1989, Ian Ring Music Theory
Scale 1987Scale 1987, Ian Ring Music Theory
Scale 1995Scale 1995, Ian Ring Music Theory
Scale 1999Scale 1999, Ian Ring Music Theory
Scale 2007Scale 2007, Ian Ring Music Theory
Scale 2023Scale 2023, Ian Ring Music Theory
Scale 1927Scale 1927, Ian Ring Music Theory
Scale 1959Scale 1959, Ian Ring Music Theory
Scale 1863Scale 1863, Ian Ring Music Theory
Scale 1735Scale 1735: Mela Navanitam, Ian Ring Music TheoryMela Navanitam
Scale 1479Scale 1479: Mela Jalarnava, Ian Ring Music TheoryMela Jalarnava
Scale 967Scale 967: Mela Salaga, Ian Ring Music TheoryMela Salaga
Scale 3015Scale 3015, Ian Ring Music Theory
Scale 4039Scale 4039, Ian Ring Music Theory

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