Eagle 53: Difference between revisions

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'''Eagle 53''' is a [[Gallery of 12-tone tempered scales|12-tone tempered scale]] invented by [[John O'Sullivan]]. It is a subset of [[53edo]].
'''Eagle 53''' is a [[Gallery of 12-tone tempered scales|12-tone tempered scale]] invented by [[John O'Sullivan]].
 
== Conception ==
O'Sullivan designed Eagle 53 to meet the following criteria:
 
# Every [[note]] between [[1/1]] and [[2/1]], when paired with both 1/1 and 2/1 must make a high strength or medium strength melodic [[interval]]. ("Strength" according to the metric described in ''Eagle 53 Article'' (2017)).
# The tuning must not have more than 12 notes per [[octave]], so as to fit comfortably on small stringed instruments like ukeleles.
# There must be at least one good [[chord]] on each of the twelve notes. ("Good" according to the metric described in ''Eagle 53 Article'' (2017)).
# These good chords must be playable on a fretted instrument such as a guitar.
 
The overall aim was to improve upon and replace [[12edo]], by making 12edo's [[consonance]]s even more in-tune, at least in the most important keys, while also making available new exotic consonances and melodies which 12edo lacks.
 
Though it used a completely different ''methodology'' than a [[well temperament]], the ''philosophy'' behind Eagle 53 was similar to one. It is not a well temperament, but it achieves many similar aims to one.
 
== Relationship to other scales ==
 
Eagle 53 is a subset of [[53edo]].
 
Eagle 53's just version is identical to that of Euler's Genus Diatonico-chromaticum and Ellis' [[Duodene]], except that those used 45/32 instead of 7/5.
 
This similarity is by coincidence and may simply speak to the fact that this is a useful and relatively simple scale that theorists are likely to land upon over and over, much like [[2L 3s]] or like 53edo itself.


== Scala file ==
== Scala file ==
Line 8: Line 28:
  12
  12
!
!
0.0
  113.208
  113.2
  203.774
  203.8
  316.981
  317.0
  384.906
  384.9
  498.113
  498.1
  588.679
  588.7
  701.887
  701.9
  815.094
  815.1
  883.019
  883.0
  1018.868
  1018.9
  1086.792
  1086.8
  1200.000
  1200.0
</pre>
</pre>


Line 30: Line 49:
  12
  12
!
!
1/1
  16/15
  16/15
  9/8
  9/8
Line 41: Line 59:
  5/3
  5/3
  9/5
  9/5
  5/8
  15/8
  2/1
  2/1
</pre>
</pre>
Subsets: [[User:BudjarnLambeth/Eagle JI subsets]]


== Music ==
== Music ==
; 2020s
* ''[https://soundcloud.com/morphosyntax-1/flowing-along Flowing Along]'' - [[Herman Miller]] (2024)
; 2010s
* ''[https://www.youtube.com/watch?v=sIsfYQATouc Taking Flight]'' - [[Xotla]] (2019)
* ''[https://www.youtube.com/watch?v=sIsfYQATouc Taking Flight]'' - [[Xotla]] (2019)
; Modern reconstruction
* ''[https://www.youtube.com/watch?v=fFU2cf1fFEM Uccellini - Aria Sopra La Bergamasca, arranged for Oboe, Recorder, Bassoon, tuned into Eagle 53]'' - [[Claudi Meneghin]] (2024)
* ''[https://www.youtube.com/watch?v=BYvzWG7y-ps Bach - Prelude BWV 999, arranged for Organ, transposed into Em, tuned into EAGLE 53]'' - Claudi Meneghin (2024)


== Further reading ==
== Further reading ==
* [https://johnsmusic7.com/Eagle53article.pdf Eagle 53 Article] - John O'Sullivan
* [https://www.facebook.com/groups/eagletuning Eagle Tuning Facebook group]
* [https://www.facebook.com/groups/eagletuning Eagle Tuning Facebook group]
* [https://www.johnsmusic7.com/ johnsmusic7.com]: O'Sullivan's website. Contains further material on Eagle 53 among other topics.
* [https://www.johnsmusic7.com/ johnsmusic7.com]: O'Sullivan's website. Contains further material on Eagle 53 among other topics.
** Articles
*** ''[https://johnsmusic7.com/Eagle53article.pdf Eagle 53 Article]'' - John O'Sullivan (2017): A short article describing how he worked out Eagle 53 tuning.
*** ''[https://www.johnsmusic7.com/EAGLE53CHORDS.pdf Eagle 53 Chords]'' - John O'Sullivan: A list of strong chords that occur in Eagle 53.
*** ''[https://www.johnsmusic7.com/JohnsRulesMusic.pdf John’s Rules]'' - John O'Sullivan: A short and free book about O'Sullivan's recommended rules for musical composition (esp. in Eagle 53).
** Web apps
*** [https://www.johnsmusic7.com/heart.html Heart app]: Eagle 53 app where the root notes of seven strong and near just chords correspond to 3:4:5:6:7:8:9.
*** [https://www.johnsmusic7.com/eagle53.html 10 strong chords app]: Eagle 53 app with ten strong chords.
*** [https://www.johnsmusic7.com/swan.html Swan app]: Eagle 53 app with 35 chords where all progressions are good.


[[Category:12-tone scales]]
[[Category:12-tone scales]]