18edo: Difference between revisions

Xenwolf (talk | contribs)
simplified wiki markup
Xenwolf (talk | contribs)
Intervals and Notation: simplified wiki markup 1/2
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The second way preserves the <u>harmonic</u> meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo "on the fly".
The second way preserves the <u>harmonic</u> meaning of sharp/flat, major/minor and aug/dim, in that the former is always further fifthwards on the chain of fifths than the latter. Sharp is lower in pitch than flat, and major/aug is narrower than minor/dim. While this approach may seem bizarre at first, interval arithmetic and chord names work as usual. Furthermore, conventional 12edo music can be directly translated to 18edo "on the fly".


{| class="wikitable"
{| class="wikitable" style="text-align:center"
|-
! Degree
! | Degree
! Cents
! | Cents
! colspan="3" | [[Ups_and_Downs_Notation|Up/down notation]] using the narrow 5th of 10\18, <br>
! colspan="3" | [[Ups_and_Downs_Notation|Up/down notation]] using the narrow 5th of 10\18,


with major wider than minor
with major wider than minor
! colspan="3" | Up/down notation using the narrow 5th of 10\18,
! colspan="3" | Up/down notation using the narrow 5th of 10\18, <br>


with major narrower than minor
with major narrower than minor
!5L3s Notation
! 5L3s Notation
|-
|-
| style="text-align:center;" | 0
| 0
| style="text-align:center;" | 0
| 0
| style="text-align:center;" | perfect unison
| perfect unison
| style="text-align:center;" | P1
| P1
| style="text-align:center;" | D
| D
| style="text-align:center;" | perfect unison
| perfect unison
| style="text-align:center;" | P1
| P1
| style="text-align:center;" | D
| D
|C
| C
|-
|-
| style="text-align:center;" | 1
| 1
| style="text-align:center;" | 67
| 67
| style="text-align:center;" | up unison, downminor 2nd
| up unison, downminor 2nd
| style="text-align:center;" | ^1, vm2
| ^1, vm2
| style="text-align:center;" | ^D, vE
| ^D, vE
| style="text-align:center;" | up unison, downmajor 2nd
| up unison, downmajor 2nd
| style="text-align:center;" | ^1, vM2
| ^1, vM2
| style="text-align:center;" | ^D, vE
| ^D, vE
|Db
| Db
|-
|-
| style="text-align:center;" | 2
| 2
| style="text-align:center;" | 133
| 133
| style="text-align:center;" | minor 2nd
| minor 2nd
| style="text-align:center;" | m2
| m2
| style="text-align:center;" | E
| E
| style="text-align:center;" | major 2nd
| major 2nd
| style="text-align:center;" | M2
| M2
| style="text-align:center;" | E
| E
|C#
| C#
|-
|-
| style="text-align:center;" | 3
| 3
| style="text-align:center;" | 200
| 200
| style="text-align:center;" | mid 2nd
| mid 2nd
| style="text-align:center;" | ~2
| ~2
| style="text-align:center;" | ^E
| ^E
| style="text-align:center;" | mid 2nd
| mid 2nd
| style="text-align:center;" | ~2
| ~2
| style="text-align:center;" | ^E
| ^E
|D
| D
|-
|-
| style="text-align:center;" | 4
| 4
| style="text-align:center;" | 267
| 267
| style="text-align:center;" | major 2nd, minor 3rd
| major 2nd, minor 3rd
| style="text-align:center;" | M2, m3
| M2, m3
| style="text-align:center;" | E#, Fb
| E#, Fb
| style="text-align:center;" | minor 2nd, major 3rd
| minor 2nd, major 3rd
| style="text-align:center;" | m2, M3
| m2, M3
| style="text-align:center;" | Eb, F#
| Eb, F#
|Eb
| Eb
|-
|-
| style="text-align:center;" | 5
| 5
| style="text-align:center;" | 333
| 333
| style="text-align:center;" | mid 3rd
| mid 3rd
| style="text-align:center;" | ~3
| ~3
| style="text-align:center;" | vF
| vF
| style="text-align:center;" | mid 3rd
| mid 3rd
| style="text-align:center;" | ~3
| ~3
| style="text-align:center;" | vF
| vF
|D#
| D#
|-
|-
| style="text-align:center;" | 6
| 6
| style="text-align:center;" | 400
| 400
| style="text-align:center;" | major 3rd
| major 3rd
| style="text-align:center;" | M3
| M3
| style="text-align:center;" | F
| F
| style="text-align:center;" | minor 3rd
| minor 3rd
| style="text-align:center;" | m3
| m3
| style="text-align:center;" | F
| F
|E
| E
|-
|-
| style="text-align:center;" | 7
| 7
| style="text-align:center;" | 467
| 467
| style="text-align:center;" | upmajor 3rd, down 4th
| upmajor 3rd, down 4th
| style="text-align:center;" | ^M3, v4
| ^M3, v4
| style="text-align:center;" | ^F, vG
| ^F, vG
| style="text-align:center;" | upminor 3rd, down 4th
| upminor 3rd, down 4th
| style="text-align:center;" | ^m3, v4
| ^m3, v4
| style="text-align:center;" | ^F, vG
| ^F, vG
|F
| F
|-
|-
| style="text-align:center;" | 8
| 8
| style="text-align:center;" | 533
| 533
| style="text-align:center;" | perfect 4th
| perfect 4th
| style="text-align:center;" | P4
| P4
| style="text-align:center;" | G
| G
| style="text-align:center;" | perfect 4th
| perfect 4th
| style="text-align:center;" | P4
| P4
| style="text-align:center;" | G
| G
|Gb
| Gb
|-
|-
| style="text-align:center;" | 9
| 9
| style="text-align:center;" | 600
| 600
| style="text-align:center;" | up 4th, down 5th
| up 4th, down 5th
| style="text-align:center;" | ^4, v5
| ^4, v5
| style="text-align:center;" | ^G, vA
| ^G, vA
| style="text-align:center;" | up 4th, down 5th
| up 4th, down 5th
| style="text-align:center;" | ^4, v5
| ^4, v5
| style="text-align:center;" | ^G, vA
| ^G, vA
|F#
| F#
|-
|-
| style="text-align:center;" | 10
| 10
| style="text-align:center;" | 667
| 667
| style="text-align:center;" | perfect 5th
| perfect 5th
| style="text-align:center;" | P5
| P5
| style="text-align:center;" | A
| A
| style="text-align:center;" | perfect 5th
| perfect 5th
| style="text-align:center;" | P5
| P5
| style="text-align:center;" | A
| A
|G
| G
|-
|-
| style="text-align:center;" | 11
| 11
| style="text-align:center;" | 733
| 733
| style="text-align:center;" | up 5th, downminor 6th
| up 5th, downminor 6th
| style="text-align:center;" | ^5, vm6
| ^5, vm6
| style="text-align:center;" | ^A, vB
| ^A, vB
| style="text-align:center;" | up fifth, downmajor 6th
| up fifth, downmajor 6th
| style="text-align:center;" | ^5, vM6
| ^5, vM6
| style="text-align:center;" | ^A, vB
| ^A, vB
|Hb
| Hb
|-
|-
| style="text-align:center;" | 12
| 12
| style="text-align:center;" | 800
| 800
| style="text-align:center;" | minor 6th
| minor 6th
| style="text-align:center;" | m6
| m6
| style="text-align:center;" | B
| B
| style="text-align:center;" | major 6th
| major 6th
| style="text-align:center;" | M6
| M6
| style="text-align:center;" | B
| B
|G#
| G#
|-
|-
| style="text-align:center;" | 13
| 13
| style="text-align:center;" | 867
| 867
| style="text-align:center;" | mid 6th
| mid 6th
| style="text-align:center;" | ~6
| ~6
| style="text-align:center;" | ^B
| ^B
| style="text-align:center;" | mid 6th
| mid 6th
| style="text-align:center;" | ~6
| ~6
| style="text-align:center;" | ^B
| ^B
|H
| H
|-
|-
| style="text-align:center;" | 14
| 14
| style="text-align:center;" | 933
| 933
| style="text-align:center;" | major 6th, minor 7th
| major 6th, minor 7th
| style="text-align:center;" | M6, m7
| M6, m7
| style="text-align:center;" | B#, Cb
| B#, Cb
| style="text-align:center;" | minor 6th, major 7th
| minor 6th, major 7th
| style="text-align:center;" | m6, M7
| m6, M7
| style="text-align:center;" | Bb, C#
| Bb, C#
|A
| A
|-
|-
| style="text-align:center;" | 15
| 15
| style="text-align:center;" | 1000
| 1000
| style="text-align:center;" | mid 7th
| mid 7th
| style="text-align:center;" | ~7
| ~7
| style="text-align:center;" | vC
| vC
| style="text-align:center;" | mid 7th
| mid 7th
| style="text-align:center;" | ~7
| ~7
| style="text-align:center;" | vC
| vC
|Bb
| Bb
|-
|-
| style="text-align:center;" | 16
| 16
| style="text-align:center;" | 1067
| 1067
| style="text-align:center;" | major 7th
| major 7th
| style="text-align:center;" | M7
| M7
| style="text-align:center;" | C
| C
| style="text-align:center;" | minor 7th
| minor 7th
| style="text-align:center;" | m7
| m7
| style="text-align:center;" | C
| C
|A#
| A#
|-
|-
| style="text-align:center;" | 17
| 17
| style="text-align:center;" | 1133
| 1133
| style="text-align:center;" | upmajor 7th, down 8ve
| upmajor 7th, down 8ve
| style="text-align:center;" | ^M7, v8
| ^M7, v8
| style="text-align:center;" | ^C, vD
| ^C, vD
| style="text-align:center;" | upminor 7th, down 8ve
| upminor 7th, down 8ve
| style="text-align:center;" | ^m7, v8
| ^m7, v8
| style="text-align:center;" | ^C, vD
| ^C, vD
|B
| B
|-
|-
| style="text-align:center;" | 18
| 18
| style="text-align:center;" | 1200
| 1200
| style="text-align:center;" | perfect 8ve
| perfect 8ve
| style="text-align:center;" | P8
| P8
| style="text-align:center;" | D
| D
| style="text-align:center;" | perfect 8ve
| perfect 8ve
| style="text-align:center;" | P8
| P8
| style="text-align:center;" | D
| D
|C
| C
|}
|}