143edo: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
'''143edo''' is the [[equal division of the octave]] into 143 parts of approximately 8.392¢ each. The 143b val provides a tuning almost identical with that of the POTE tuning for 7-limit meantone.
{{EDO intro}}


As 143 is 11*13, 143edo allows the [[Polymicrotonality|polymicrotonal]] juxtaposition of [[11edo]] and [[13edo]]:
The 143b val provides a tuning almost identical with that of the [[POTE tuning]] for 7-limit [[meantone]].
 
=== Odd harmonics ===
{{Harmonics in equal|143}}
 
=== Subsets and supersets ===
As 143 is 11 × 13, 143edo allows the [[polymicrotonality|polymicrotonal juxtaposition]] of [[11edo]] and [[13edo]]:


[[File:13_against_11.gif|alt=13_against_11.gif|800x312px|13_against_11.gif]]
[[File:13_against_11.gif|alt=13_against_11.gif|800x312px|13_against_11.gif]]


If the 11edo and 13edo subsets are analyzed as two scales that share the Tonic and are then combined (as in the diagram above), the resulting scale would have 23 tones in the octave; otherwise, it would have 24.
If the 11edo and 13edo subsets are analyzed as two scales that share the [[tonic]] and are then combined (as in the diagram above), the resulting scale would have 23 tones in the octave; otherwise, it would have 24.
 
[[Category:Equal divisions of the octave|###]] <!-- 3-digit number -->

Revision as of 06:59, 21 May 2024

← 142edo 143edo 144edo →
Prime factorization 11 × 13
Step size 8.39161 ¢ 
Fifth 84\143 (704.895 ¢)
Semitones (A1:m2) 16:9 (134.3 ¢ : 75.52 ¢)
Dual sharp fifth 84\143 (704.895 ¢)
Dual flat fifth 83\143 (696.503 ¢)
Dual major 2nd 24\143 (201.399 ¢)
Consistency limit 5
Distinct consistency limit 5

Template:EDO intro

The 143b val provides a tuning almost identical with that of the POTE tuning for 7-limit meantone.

Odd harmonics

Approximation of odd harmonics in 143edo
Harmonic 3 5 7 9 11 13 15 17 19 21 23
Error Absolute (¢) +2.94 -0.30 -3.79 -2.51 +2.53 -1.37 +2.64 +4.14 -3.81 -0.85 +1.10
Relative (%) +35.0 -3.6 -45.2 -29.9 +30.1 -16.3 +31.5 +49.3 -45.4 -10.1 +13.1
Steps
(reduced)
227
(84)
332
(46)
401
(115)
453
(24)
495
(66)
529
(100)
559
(130)
585
(13)
607
(35)
628
(56)
647
(75)

Subsets and supersets

As 143 is 11 × 13, 143edo allows the polymicrotonal juxtaposition of 11edo and 13edo:

13_against_11.gif

If the 11edo and 13edo subsets are analyzed as two scales that share the tonic and are then combined (as in the diagram above), the resulting scale would have 23 tones in the octave; otherwise, it would have 24.