5edt: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
{{EDO intro}}
{{ED intro}}


== Theory ==
== Theory ==
5edt has steps too large to be used melodically, though it has some notable harmonic properties shared by other 5''n''-edts (such as [[10edt]], [[15edt]], etc.). It has a surprisingly accurate [[5/4]] major third (only 5.92{{cent}} flat), five of them making a tritave. (This phenomenon cannot be seen in single-digit [[edo]]s, and it is not until [[19edo]] that an approximation of 5/4 to within 10{{c}} can be seen.) 5edt therefore tempers out [[3125/3072]], the magic comma. Two of these major thirds give a septimal minor sixth, meaning that it also tempers out the marvel comma [[225/224]].


5edt has steps too large to be used melodically, though it has some notable harmonic properties shared by other 5n-edts (such as [[10edt]], [[15edt]], etc.). It has a surprisingly accurate [[5/4]] major third (only 5.92 [[cents]] flat), five of them making a tritave. (This phenomenon cannot be seen in single-digit [[edo]]s, and it is not until [[19edo]] that an approximation of 5/4 to within 10 cents can be seen.) 5edt therefore tempers out [[3125/3072]], the magic comma. Two of these major thirds give a septimal minor sixth, meaning that it also tempers out the marvel comma [[225/224]].
5edt is the first edt to encompass elements of [[5-limit]] harmony. The available chords are 4:5:12 and 5:12:15; being inversions of each other, they essentially act as "major" and "minor" chords. This is similar to [[6edt]], which contains the same chords but with the major thirds transposed an octave higher, and vice versa. Also available is the chord 9:14:27, which can express the single [[7-limit]] consonance found in 5edt.   
 
5edt is the lowest equal division of the tritave to encompass elements of [[5-limit]] harmony. The available chords are 4:5:12 and 5:12:15; being inversions of each other, they essentially act as "major" and "minor" chords. This is similar to [[6edt]], which contains the same chords but with the major thirds transposed an octave higher, and vice versa. Also available is the chord 9:14:27, which can express the single [[7-limit]] consonance found in 5edt.   


=== Harmonics ===
=== Harmonics ===
{{Harmonics in equal|5|3|1}}
{{Harmonics in equal|5|3|1|columns=15}}


== Steps ==
=== Subsets and supersets ===
5edt is the 3rd [[prime equal division|prime edt]], after [[3edt]] and before [[7edt]].


== Intervals ==
{| class="wikitable right-all left-4"
{| class="wikitable right-all left-4"
|-
|-
! Degrees
! #
! Cents
! Cents
! Hekts
! Hekts
! Approximate Ratios
! Approximate ratios
|-
|-
| 0
| 0
| 0.000
| 0
| 0
| 0
| [[1/1]]
| [[1/1]]
|-
|-
| 1
| 1
| 380.391
| 380
| 260
| 260
| [[5/4]]
| [[5/4]]
|-
|-
| 2
| 2
| 760.782
| 761
| 520
| 520
| [[14/9]]
| [[14/9]]
|-
|-
| 3
| 3
| 1141.173
| 1141
| 780
| 780
| [[27/14]]
| [[27/14]]
|-
|-
| 4
| 4
| 1521.564
| 1522
| 1040
| 1040
| [[12/5]] ([[6/5]] plus an octave)
| [[12/5]]
|-
|-
| 5
| 5
| 1901.955
| 1902
| 1300
| 1300
| [[3/1]]
| [[3/1]]
|}
|}
[[Category:Edt]]
[[Category:Nonoctave]]
[[Category:Macrotonal]]


[[Category:Todo:add sound example]]
[[Category:Todo:add sound example]]