Flattone: Difference between revisions

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<nowiki>*</nowiki> In 13-limit CTE tuning, octave reduced
<nowiki>*</nowiki> In 13-limit CTE tuning, octave reduced


== Flattone intervals ==
=== As a detemperament of 7et ===
Flattone is best analyzed as a 7-form system. It is melodically intuitive compared to standard meantone, in that 7-limit intervals are found as augmented and diminished versions of the category they "should" belong to (that is, the quartertone represents both 25/24 and 64/63).
Flattone is best analyzed as a 7-form system. It is melodically intuitive compared to standard meantone, in that 7-limit intervals are found as augmented and diminished versions of the category they "should" belong to (that is, the quartertone represents both 25/24 and 64/63).
{| class="wikitable"
 
! rowspan="2" |Interval category
{| class="wikitable right-2 right-4 right-6 right-8 right-10"
! colspan="2" |-2 quartertones
! rowspan="2" | Interval category
! colspan="2" |-1 quartertone
! colspan="2" | -2 quartertones
! colspan="2" |0 quartertones
! colspan="2" | -1 quartertone
! colspan="2" |1 quartertone
! colspan="2" | 0 quartertones
! colspan="2" |2 quartertones
! colspan="2" | 1 quartertone
! colspan="2" | 2 quartertones
|-
|-
!Cents*
! Cents*
!Approximate ratios
! Approx. ratios
!Cents*
! Cents*
!Approximate ratios
! Approx. ratios
!Cents*
! Cents*
!Approximate ratios
! Approx. ratios
!Cents*
! Cents*
!Approximate ratios
! Approx. ratios
!Cents*
! Cents*
!Approximate ratios
! Approx. ratios
|-
|-
|Unison
| Unison
|1098
| 1098
|28/15
| 28/15
|1149
| 1149
|48/25, 52/27, 64/33, 35/18, 98/55, 63/32
| 48/25, 52/27, 64/33, 35/18, 98/55, 63/32
|0
| 0
|1/1
| 1/1
|51
| 51
|25/24, 27/26, 33/32, 36/35, 55/54, 64/63
| 25/24, 27/26, 33/32, 36/35, 55/54, 64/63
|102
| 102
|15/14
| 15/14
|-
|-
|Second
| Second
|84
| 84
|28/27, 21/20
| 28/27, 21/20
|135
| 135
|16/15, 12/11, 13/12, 14/13
| 16/15, 12/11, 13/12, 14/13
|186
| 186
|9/8, 10/9, 11/10
| 9/8, 10/9, 11/10
|237
| 237
|8/7, 15/13
| 8/7, 15/13
|288
| 288
|
|  
|-
|-
|Third
| Third
|219
| 219
|
|  
|270
| 270
|7/6
| 7/6
|321
| 321
|6/5
| 6/5
|372
| 372
|5/4, 16/13, 26/21
| 5/4, 16/13, 26/21
|423
| 423
|9/7
| 9/7
|-
|-
|Fourth
| Fourth
|405
| 405
|
|  
|456
| 456
|13/10, 21/16
| 13/10, 21/16
|507
| 507
|4/3
| 4/3
|558
| 558
|11/8, 18/13
| 11/8, 18/13
|609
| 609
|10/7
| 10/7
|-
|-
|Fifth
| Fifth
|591
| 591
|7/5
| 7/5
|642
| 642
|16/11, 13/9
| 16/11, 13/9
|693
| 693
|3/2
| 3/2
|744
| 744
|20/13, 32/21
| 20/13, 32/21
|795
| 795
|
|  
|-
|-
|Sixth
| Sixth
|777
| 777
|14/9
| 14/9
|828
| 828
|8/5, 13/8, 21/13
| 8/5, 13/8, 21/13
|879
| 879
|5/3
| 5/3
|930
| 930
|12/7
| 12/7
|981
| 981
|
|  
|-
|-
|Seventh
| Seventh
|912
| 912
|
|  
|963
| 963
|7/4, 26/15
| 7/4, 26/15
|1014
| 1014
|9/5, 16/9
| 9/5, 16/9
|1065
| 1065
|15/8, 11/6, 13/7, 24/13
| 15/8, 11/6, 13/7, 24/13
|1116
| 1116
|40/21, 27/14
| 40/21, 27/14
|}
|}


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{| class="wikitable center-all left-4"
{| class="wikitable center-all left-4"
! Edo<br>generator
! Edo<br>generator
! [[Eigenmonzo|Eigenmonzo<br>(Unchanged-interval)]]*
! [[Eigenmonzo|Eigenmonzo<br>(unchanged-interval)]]*
! Generator<br>(¢)
! Generator<br>(¢)
! Comments
! Comments