User:VectorGraphics/Vector's introduction to 15edo/Chords: Difference between revisions

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█▒▒▒▓▒▒▒▒▓▒ - minor triad (on 3, 6)
█▒▒▒▓▒▒▒▒▓▒ - minor triad (on 3, 6)


█▒▒▓▒▒▒▒▓▒ - wolf minor triad (on 2)
█▒▒▓▒▒▒▒▓▒ - wolfminor triad (on 2)


█▒▒▒▓▒▒▓▒ - wolf major diminished triad (on 7)
█▒▒▒▓▒▒▓▒ - major diminished triad (on 7)


=== Left-handed chords ===
=== Left-handed chords ===
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█▒▒▒▓▒▒▒▒▓▒ - minor triad (on 2, 3, 6)
█▒▒▒▓▒▒▒▒▓▒ - minor triad (on 2, 3, 6)


█▒▒▒▒▓▒▒▓▒ - wolf major triad (on 5)
█▒▒▒▒▓▒▒▓▒ - wolfmajor triad (on 5)
 
█▒▒▓▒▒▒▓▒ - wolf minor diminished triad (on 7)


█▒▒▓▒▒▒▓▒ - minor diminished triad (on 7)


The wolfminor and wolfmajor triads can be seen as tenser than their corresponding chords with fifths. As such, the LH Ionian's Vwmajh7 chord works as a strong resolution to the stable tonic chord.
Note that each scale only contains five perfect fifths instead of six.
Note that each scale only contains five perfect fifths instead of six.


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█▒▒▒▓▒▒▒▒▓▒▒▒▓▒|▒ - minor 7th chord (on 3, 6)
█▒▒▒▓▒▒▒▒▓▒▒▒▓▒|▒ - minor 7th chord (on 3, 6)


█▒▒▓▒▒▒▒▓▒▒▒▓▒▒|▒ - wolf minor harmonic 7th chord (on 2)
█▒▒▓▒▒▒▒▓▒▒▒▓▒▒|▒ - wolfminor harmonic 7th chord (on 2)


█▒▒▒▒▓▒▒▒▓▒▒▓▒▒|▒ - harmonic 7th chord (on 5)
█▒▒▒▒▓▒▒▒▓▒▒▓▒▒|▒ - harmonic 7th chord (on 5)
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█▒▒▒▓▒▒▒▒▓▒▒▓▒▒|▒ - minor harmonic 7th chord (on 3)
█▒▒▒▓▒▒▒▒▓▒▒▓▒▒|▒ - minor harmonic 7th chord (on 3)


█▒▒▒▒▓▒▒▓▒▒▒▓▒▒|▒ - wolf major harmonic 7th chord (on 5)
█▒▒▒▒▓▒▒▓▒▒▒▓▒▒|▒ - wolfmajor harmonic 7th chord (on 5)


█▒▒▓▒▒▒▓▒▒▒▒▓▒▒|▒ - minor half diminished 7th chord (on 7)
█▒▒▓▒▒▒▓▒▒▒▒▓▒▒|▒ - minor half diminished 7th chord (on 7)
Some of these chords produce other chords in inversions:
█▒▒▒▒▓▒▒▓▒▒▒▓▒▒|▒ - wolfmajor harmonic 7th chord
▓▒▒▓▒▒▒▓▒▒█▒▒▒▒|▒ - minor diminished augmented chord
▓▒▒▒▓▒▒█▒▒▒▒▓▒▒|▒ - major half diminished 7th chord
▓▒▒█▒▒▒▒▓▒▒▓▒▒▒|▒ - wolfminor diminished 7th chord
█▒▒▒▓▒▒▒▒▓▒▒▓▒▒|▒ - minor harmonic 7th chord
▓▒▒▒▒▓▒▒▓▒▒█▒▒▒|▒ - wolfmajor diminished 7th chord
▓▒▒▓▒▒█▒▒▒▓▒▒▒▒|▒ - slendric augmented tetrad
▓▒▒█▒▒▒▓▒▒▒▒▓▒▒|▒ - minor half diminished 7th chord
█▒▒▓▒▒▒▒▓▒▒▒▓▒▒|▒ - wolfminor harmonic 7th chord
▓▒▒▒▒▓▒▒▒▓▒▒█▒▒|▒ - harmonic 7th chord
▓▒▒▒▓▒▒█▒▒▓▒▒▒▒|▒ - major diminished augmented chord
▓▒▒█▒▒▓▒▒▒▒▓▒▒▒|▒ - slendric diminished 7th chord




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The distance between the second and the fourth is exactly the same as between either and its closest bounding note - that is, the notes split the fifth perfectly into three. That's why we call this a "slendric tetrad", because each of these 240c steps represents a large whole tone, and three of them make a perfect fifth.
The distance between the second and the fourth is exactly the same as between either and its closest bounding note - that is, the notes split the fifth perfectly into three. That's why we call this a "slendric tetrad", because each of these 240c steps represents a large whole tone, and three of them make a perfect fifth.
More on this phenomenon at [[Extraclassical tonality]].


We can extend this to the slendric pentad:
We can extend this to the slendric pentad:
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█▒▒▒▓▒▒▒▓▒ - diminished triad
█▒▒▒▓▒▒▒▓▒ - diminished triad


█▒▒▒▓▒▒▒▓▒▒▒▓▒ - diminished seventh tetrad
█▒▒▒▓▒▒▒▓▒▒▒▓▒ - diminished harmonic seventh tetrad


These diminished chords result from stacking the same minor third interval. The diminished seventh tetrad is the root chord of the darkest mode of onyx (other dark modes contain a version with a sharper seventh, {█▒▒▒▓▒▒▒▓▒▒▒▒▓▒}) Note that the diminished seventh tetrad does not actually close at the octave; a diminished ninth triad would look like this:
These diminished chords result from stacking the same minor third interval. The diminished seventh tetrad is the root chord of the darkest mode of onyx (other dark modes contain a version with a sharper seventh, {█▒▒▒▓▒▒▒▓▒▒▒▒▓▒}) Note that the diminished seventh tetrad does not actually close at the octave; a diminished ninth triad would look like this: