31edo chord names: Difference between revisions
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Various [[31edo]] triads, 6th and 7th chords, named via [[Ups and | == Ups and downs notation == | ||
Various [[31edo]] triads, 6th and 7th chords, named via [[Ups and downs notation|ups and downs]]. Not meant to be exhaustive, but this list does demonstrate the basic rules for naming. ~4 and ^4 can be used interchangeably, as can ~5 and v5. | |||
Highly implausible chords are named as a more plausible [[Chord homonym|homonym]], e.g. 0-13-20 = C4(a5) becomes 13-20-31 = Fvm. "a" stands for augmented and "d" stands for diminished. | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! | ! colspan="2" | Third → | ||
|Cvm | ! vm3 | ||
|Cm | ! m3 | ||
|C~ | ! ~3 | ||
|C | ! M3 | ||
|C^ | ! ^M3 | ||
|Cv4 | ! v4 | ||
|C4 | ! P4 | ||
|C~4 | ! ~4 | ||
|- | |||
! colspan="2" | Triads with P5 | |||
| Cvm | |||
| Cm | |||
| C~ | |||
| C | |||
| C^ | |||
| Cv4 | |||
| C4 | |||
| C~4 | |||
|- | |||
! rowspan="5" | Other<br />triads | |||
! ~5 | |||
| Cvm(v5) | |||
| Cm(v5) | |||
| C~(v5) | |||
| C(v5) | |||
| C^(v5) | |||
| Cv4(v5) | |||
| C4(v5) | |||
| C~4(v5) | |||
|- | |||
! d5 | |||
| Cvd | |||
| Cd | |||
| C^d | |||
| C(b5) | |||
| C^(b5) | |||
| Cv4(b5) | |||
| C4(b5) | |||
| C~4(b5) | |||
|- | |||
! vd5 | |||
| Cvd(v5) | |||
| Cd(v5) | |||
| C^d(v5) | |||
| C(vb5) | |||
| C^(vb5) | |||
| Cv4(vb5) | |||
| C4(vb5) | |||
| C~4(vb5) | |||
|- | |||
! ^5 | |||
| Cvm(^5) | |||
| Cm(^5) | |||
| C~(^5) | |||
| C(^5) | |||
| C^(^5) | |||
| Cv4(^5) | |||
| C4(^5) | |||
| C~4(^5) | |||
|- | |||
! a5 | |||
| ''(vAb^)'' | |||
| Cm(#5) | |||
| C~a | |||
| Ca | |||
| C^a | |||
| Cv4(#5) | |||
| ''(Fvm)'' | |||
| C~4(#5) | |||
|- | |||
! rowspan="8" | Tetrads<br />with a<br />P5 | |||
! ~6 | |||
| Cvm~6 | |||
| Cm~6 | |||
| C~6 | |||
| C,~6 | |||
| C^,~6 | |||
| Cv4~6 | |||
| C4~6 | |||
| C~4~6 | |||
|- | |||
! M6 | |||
| Cvm,6 | |||
| Cm6 | |||
| C~,6 | |||
| C6 | |||
| C^,6 | |||
| Cv4,6 | |||
| C4,6 | |||
| C~4,6 | |||
|- | |||
! ^M6 | |||
| Cvm^6 | |||
| Cm^6 | |||
| C~^6 | |||
| C,^6 | |||
| C^6 | |||
| Cv4^6 | |||
| C4^6 | |||
| C~4^6 | |||
|- | |- | ||
! | ! vm7 | ||
| | | Cvm7 | ||
| | | Cmv7 | ||
|C~ | | C~v7 | ||
|C, | | C,v7 | ||
|C^ | | C^v7 | ||
| | | Cv4v7 | ||
| | | C4v7 | ||
|C~ | | C~4v7 | ||
|- | |- | ||
! | ! m7 | ||
|Cvm, | | Cvm,7 | ||
| | | Cm7 | ||
|C~, | | C~,7 | ||
| | | C7 | ||
|C^, | | C^,7 | ||
|Cv4, | | Cv4,7 | ||
|C4, | | C4,7 | ||
|C~4,6 | | C~4,7 | ||
|- | |||
! ~7 | |||
| Cvm~7 | |||
| Cm~7 | |||
| C~7 | |||
| C,~7 | |||
| C^,~7 | |||
| Cv4~7 | |||
| C4~7 | |||
| C~4~7 | |||
|- | |||
! M7 | |||
| CvmM7 | |||
| CmM7 | |||
| C~M7 | |||
| CM7 | |||
| C^,M7 | |||
| Cv4M7 | |||
| C4M7 | |||
| C~4M7 | |||
|- | |||
! ^M7 | |||
| Cvm^M7 | |||
| Cm^M7 | |||
| C~^M7 | |||
| C,^M7 | |||
| C^M7 | |||
| Cv4^M7 | |||
| C4^M7 | |||
| C~4^M7 | |||
|} | |||
A punctuation comma (",") is spoken as "add", thus C,v7 is "C add-down-seven". The only exception is when a comma separates two numbers, as in C4,7 which is "C four-seven". A comma is written, and "add" is spoken, whenever not doing so would cause confusion with another chord. C^,~6 is clear without a comma or an "add" if limiting oneself to 31edo. However, some edos like 58-edo have an upmid 3rd and 6th, and C^~6 would be P1 ^~3 P5 ^~6. | |||
Note that 4:5:6:7 = C E G vBb is named C,v7 not Cv7 because Cv7 is an alternate name for C~v7. To get a shorter name for this important chord, one could call it a harmonic7 chord, or one could borrow from [[color notation]] to call it a har7 chord, written Ch7. Names for subharmonic chords can be similarly shortened. | |||
{| class="wikitable" | |||
|- | |- | ||
! | ! Chord | ||
! Notes | |||
! colspan="2" | Ups and downs name | |||
! colspan="2" | Color name | |||
| | |||
| | |||
|- | |- | ||
| 4:5:6:7 | |||
| | | C E G vBb | ||
| | | C add-down-7 | ||
|C | | C,v7 | ||
|C,v7 | | C har7 | ||
|C | | Ch7 | ||
| | |||
|- | |- | ||
| 4:5:6:7:9 | |||
| | | C E G vBb D | ||
| | | C-nine down-7 | ||
|C | | C9(v7) | ||
| | | C har7 | ||
|C | | Ch7 | ||
| | |||
|- | |- | ||
| 7:6:5:4 | |||
| | | C vEb vGb vBb | ||
| | | C downminor7 downflat-5 | ||
|C | | Cvm7(vb5) | ||
| | | C sub7 | ||
|C | | Cs7 | ||
| | |||
|- | |- | ||
| 12:10:8:7 | |||
| | | C Eb G ^A | ||
| | | C minor up-6 | ||
|C | | Cm^6 | ||
| | | C sub6 | ||
|C | | Cs6 | ||
| | |||
|- | |- | ||
| 9:7:6:5:4 | |||
| | | C ^E G Bb D | ||
| | | C-nine up-3 | ||
|C | | C9(v3) | ||
| | | C sub9 | ||
|C | | Cs9 | ||
| | |||
|} | |} | ||
== Extended jazz symbol set == | |||
[[File:31edo chord symbols.jpg|thumb|400px|No*ie's original proposition (2024-03-02).]]<br />No*ie proposes the following symbols: | |||
{| class="wikitable" | |||
|- | |||
! Chord quality | |||
! Symbol | |||
! Comments | |||
|- | |||
| Inframinor | |||
| I | |||
| The horizontal and vertical bars of the letter I may be drawn to scale with the subminor symbol for more visual consistency | |||
|- | |||
| Subminor | |||
| = | |||
| Akin to two parallel minus signs | |||
|- | |||
| Minor | |||
| − | |||
| | |||
|- | |||
| Neutral | |||
| ◻ | |||
| | |||
|- | |||
| Major | |||
| △ | |||
| | |||
|- | |||
| Supermajor | |||
| ▲ | |||
| | |||
|- | |||
| Ultramajor | |||
| U | |||
| The letter U may be drawn with horizontal and vertical bars for more visual consistency with other symbols | |||
|- | |||
| Harmonic seventh | |||
| H7 | |||
| | |||
|- | |||
| Diminished | |||
| ∘ | |||
| | |||
|- | |||
| Subdiminished / sin(bv5) | |||
| ● | |||
| | |||
|- | |||
| Half Diminished / m7(b5) | |||
| ∅ | |||
| | |||
|- | |||
| Half Subdiminished / sin7(bv5) | |||
| ⦰ | |||
| | |||
|- | |||
| Augmented | |||
| + | |||
| | |||
|- | |||
| Superaugmented / saj(#+5) | |||
| 王 (or *) | |||
| Akin to the plus sign with two extra lines | |||
|} | |||
These symbols can also be used with other tuning systems where these interval qualities are relevant. | |||
== See also == | |||
* [[15edo chord names]] | |||
* [[19edo chord names]] | |||
* [[22edo chord names]] | |||
* [[24edo chord names]] | |||
* [[41edo chord names]] | |||
* [[Kite Guitar chord shapes (downmajor tuning)]] | |||
[[Category:31edo]] | [[Category:31edo]] | ||
[[Category:Chords]] | |||
[[Category:Ups and downs notation]] | |||
[[Category:Notation]] |