73edo: Difference between revisions

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add Notation section, and Sagittal notation
Music: Bryan Deister's ''Waltz in 73edo'' (2026): add full version
 
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{{Infobox ET}}
{{Infobox ET}}
{{EDO intro|73}}
{{ED intro}}


== Theory ==
== Theory ==
73edo has a very sharp tendency, with the approximations of [[3/1|3]], [[5/1|5]], [[7/1|7]], [[11/1|11]] all sharp. The equal temperament [[tempering out|tempers out]] [[78732/78125]] and [[262144/253125]] in the [[5-limit]]; [[126/125]] and [[245/243]] in the [[7-limit]]; [[176/175]], [[441/440]] and [[4000/3993]] in the [[11-limit]]; [[91/90]], [[169/168]], [[196/195]], [[325/324]], [[351/350]] and [[352/351]] in the [[13-limit]]. It provides the [[optimal patent val]] for the [[marrakesh]] temperament, though [[104edo]] and [[135edo]] tunes it better.  
73edo has a very sharp tendency, with the approximations of [[3/1|3]], [[5/1|5]], [[7/1|7]], [[11/1|11]] all sharp. The equal temperament [[tempering out|tempers out]] [[78732/78125]] and [[262144/253125]] in the [[5-limit]]; [[126/125]] and [[245/243]] in the [[7-limit]]; [[176/175]], [[441/440]] and [[4000/3993]] in the [[11-limit]]; [[91/90]], [[169/168]], [[196/195]], [[325/324]], [[351/350]], and [[352/351]] in the [[13-limit]]. It provides the [[optimal patent val]] for the [[marrakesh]] temperament, though [[104edo]] and [[135edo]] tune it better.


73edo fits in [[mavila]] scale, by the 9;5 relation in the [[7L 2s|superdiatonic]] scheme.
73edo can be used as a tuning of [[trismegistus]] or [[mavila]], by the 9:5 relation in the [[7L 2s|superdiatonic]] scheme, though neither of these use the most accurate 3/2. It is also notable for supporting the 2.3.5.7.13 version of [[sensi]] entirely by patent val.


=== Prime harmonics ===
=== Prime harmonics ===
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== Notation ==
== Notation ==


===Sagittal notation===
=== Sagittal notation ===
This notation uses the same sagittal sequence as [[80edo#Sagittal notation|80-EDO]].
This notation uses the same sagittal sequence as [[80edo#Sagittal notation|80-EDO]].
====Evo flavor====


==== Evo flavor ====
<imagemap>
<imagemap>
File:73-EDO_Evo_Sagittal.svg
File:73-EDO_Evo_Sagittal.svg
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</imagemap>
</imagemap>


====Revo flavor====
==== Revo flavor ====
 
<imagemap>
<imagemap>
File:73-EDO_Revo_Sagittal.svg
File:73-EDO_Revo_Sagittal.svg
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== Scales ==
== Scales ==
* Porky[7]: 10 10 10 13 10 10 10 ((10, 20, 30, 43, 53, 63, 73)\73)
* Porky[7]: 10 10 10 13 10 10 10 ((10, 20, 30, 43, 53, 63, 73)\73)
== Instruments ==
A [[Lumatone mapping for 73edo]] is available.


== Music ==
== Music ==
; [[Bryan Deister]]
* [https://www.youtube.com/shorts/meZYE1Yj2pY ''microtonal improvisation in 73edo''] (2025)
* ''Waltz in 73edo'' (2026)
** [https://www.youtube.com/shorts/sRZEJVBuDl0 ''<nowiki>[short]</nowiki>''] (Lumatone view)
** [https://www.youtube.com/watch?v=Z-3a5LJlul8 ''<nowiki>[full version]</nowiki>'']
; [[Claudi Meneghin]]
; [[Claudi Meneghin]]
* [https://www.youtube.com/watch?v=NuCnLVijULo ''Little Fugue on Happy Birthday''] (2020)
* [https://www.youtube.com/watch?v=NuCnLVijULo ''Little Fugue on Happy Birthday''] (2020)