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[https://stereosociety.com/polymicrotonally/ Johnny Reinhard essay on his polymicrotonal experiences]
'''Polymicrotonality''' is the use of multiple tuning systems in the same piece.<ref>[https://stereosociety.com/polymicrotonally/ Johnny Reinhard essay on his polymicrotonal experiences]</ref> [[Ivor Darreg]] also calls this '''polysystemic'''. <ref>[http://www.tonalsoft.com/sonic-arts/darreg/dar27.htm Ivor Darreg, ''Defining One's Terms'', June 1988]</ref>


=polymicrotonality with equal temperaments=
== Techniques ==
With [[equal divisions of the octave]] (or any other interval) tuning systems, polymicrotonality is achieved via the equal division which is the least common multiple of the two (or more) systems being played. [[Highly composite edo]]s are rich sources of polysystemicism as they have more divisors than any number before them, and thus provide strong opportunities of using multiple systems in one piece.


'''Compositions'''
== Music ==
; [[Ambient Esoterica]]
* [https://m.youtube.com/watch?v=X-Dk_63d9EY ''Poly Temperament Microtonality | 19edo + 29edo + 39edo''] (2023)
* [https://www.youtube.com/watch?v=_Oykgk0uOZI ''Polymicrotonality ECHO-Pluck | 7edo + 72edo | Ars Goetia''] (2024)
* [https://www.youtube.com/watch?v=8FcIBreEtOU ''Thoth AstroTarot Wheel of the Year''] (2025) – 12edo, 4edo, 10edo and 7edo


[http://micro.soonlabel.com/simultaneous-tunings/daily20100502-pythag17and12tet.mp3 In Search of Perfect Consonance] Roland GR-20 re-tuned to Arabic 17 note Pythagorean tuning and electric guitar in 12 equal by [http://www.chrisvaisvil.com Chris Vaisvil] =&gt; [http://chrisvaisvil.com/?p=139 performance details]
; [[Amelia Huff]] / [[Zhea Erose]]
* [https://www.youtube.com/watch?v=7RLwlGpyHz0 Prayer Room] [[31edo]] - [[12edo]] - [[Just intonation|JI]] (2019)


[http://micro.soonlabel.com/simultaneous-tunings/daily20110916_santabarbra_shipwreck_diving-12edo-19edo.mp3 Santa Barbara Shipwreck] 19 edo guitar with 12 edo synthesizer [http://chrisvaisvil.com/?p=1685 by Paul H. Muller and Chris Vaisvil]
; [[Bryan Deister]]
* "In The Dark" from ''The Dying Saviour'' (2019) – [https://open.spotify.com/track/38HsURNmU6eKXvk69pnqg0 Spotify] | [https://bryandeister.bandcamp.com/track/in-the-dark Bandcamp] | [https://www.youtube.com/watch?v=FrWONIPAv_E YouTube] – 23edo, 22edo, 21edo, 20edo, 19edo and 18edo


'''[http://micro.soonlabel.com/17-ET/daily20110318-seventeen-years-in-the-sixties.mp3 Seventeen Years in the Sixties] - 17 edo guitar, 12 edo 5 string bass &amp; drums by [http://www.chrisvaisvil.com Chris Vaisvil] =&gt; [http://chrisvaisvil.com/?p=585 Details]'''
; [[Chris Vaisvil]] ([http://www.chrisvaisvil.com site])
* [http://chrisvaisvil.com/?p=1730 Tuning Survey from July 21 2010]
** [http://micro.soonlabel.com/simultaneous-tunings/Bill_Bremmer_ShiningBrow_and12edo.mp3 ''The Mouth Opens to Speak''] – Bill Bremmer Shining Brow tuning and 12edo
** [http://micro.soonlabel.com/simultaneous-tunings/12edo_andBoethiussChromaticTheCIis19by16.mp3 ''The Lumma Cryptic''] – Boethiuss Chromatic
** [http://micro.soonlabel.com/simultaneous-tunings/Graham%20Breed_blues_scale_in22-tETplus12edo.mp3 ''immoderate moderations''] – Gramham Breed blues scale in 22edo plus 12edo
** [http://micro.soonlabel.com/simultaneous-tunings/daily20100528-12tet-and17-limit-quasi-meantone-in-a-major.mp3 ''untitled 1''] – 12edo and 17-limit quasi-meantone in A major
* ''In Search of Perfect Consonance'' (2010) – [http://micro.soonlabel.com/simultaneous-tunings/daily20100502-pythag17and12tet.mp3 play] | [https://chrisvaisvil.com/in-search-of-perfect-consonance/ blog] – Roland GR-20 re-tuned to Arabic 17-note Pythagorean tuning and electric guitar in 12 equal
* ''Seventeen Years in the Sixties'' (2011) – [http://micro.soonlabel.com/17-ET/daily20110318-seventeen-years-in-the-sixties.mp3 play] | [https://chrisvaisvil.com/seventeen-years-in-the-sixties/ blog] – 17edo guitar, 12edo 5-string bass &amp; drums


[http://chrisvaisvil.com/?p=1730 The following from a tuning survey by Chris Vaisvil]
; Chris Vaisvil and [[Paul H. Muller]]
* ''Santa Barbara Shipwreck'' (2011) – [http://micro.soonlabel.com/simultaneous-tunings/daily20110916_santabarbra_shipwreck_diving-12edo-19edo.mp3 play] | [https://chrisvaisvil.com/santabarbara-chipwreck/ blog] – 19edo guitar with 12edo synthesizer


[http://micro.soonlabel.com/simultaneous-tunings/Bill_Bremmer_ShiningBrow_and12edo.mp3 The Mouth Opens to Speak] Bill Bremmer Shining Brow tuning and 12 edo&lt;br&gt;
; [[Carlo Serafini]]
* ''Venusian Wedding Band'' (2014) – [http://www.seraph.it/dep/det/VenusianWeddingBand.mp3 play] | [http://www.seraph.it/blog_files/163171a0fc06728cd9a61d31eea492ef-190.html blog]


[http://micro.soonlabel.com/simultaneous-tunings/12edo_andBoethiussChromaticTheCIis19by16.mp3 The Lumma Cryptic] Boethiuss Chromatic &lt;br&gt;
; Most music by [[James Wyness]]


[http://micro.soonlabel.com/simultaneous-tunings/Graham%20Breed_blues_scale_in22-tETplus12edo.mp3 immoderate moderations] Gramham Breed blues scale in 22 edo plus 12 edo&lt;br&gt;
== References ==
<references/>


[http://micro.soonlabel.com/simultaneous-tunings/daily20100528-12tet-and17-limit-quasi-meantone-in-a-major.mp3 untitled 1] <span style="">12 edo and 17-limit quasi meantone in a major</span>&lt;br&gt;
[[Category:Terms]]
 
[[Category:Listen]]
[http://www.seraph.it/dep/det/VenusianWeddingBand.mp3 Venusian Wedding Band] by [[Carlo_Serafini|Carlo Serafini]] ([http://www.seraph.it/blog_files/163171a0fc06728cd9a61d31eea492ef-190.html blog entry])
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