Eagle 53: Difference between revisions
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== 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. ("Strong" according to the criteria 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 criteria described in ''Eagle 53 Article'' (2017)). | |||
# These good chords must be playable on a fretted instrument such as a guitar. | |||
== Relationship to other scales == | |||
Eagle 53 is identical to Euler's Genus Diatonico-chromaticum and Ellis' [[Duodene]], except that those used 45/32 instead of 7/5 in their just version. | |||
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. | |||
== Music == | == Music == | ||
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== Further reading == | == Further reading == | ||
* [https://johnsmusic7.com/Eagle53article.pdf Eagle 53 Article] - John O'Sullivan | * [https://johnsmusic7.com/Eagle53article.pdf Eagle 53 Article] - John O'Sullivan (2017) | ||
* [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. |
Revision as of 10:00, 3 December 2024
Eagle 53 is a 12-tone tempered scale invented by John O'Sullivan. It is a subset of 53edo.
Scala file
! eagle53.scl ! Eagle 53, John O'Sullivan, key of E 12 ! 0.0 113.2 203.8 317.0 384.9 498.1 588.7 701.9 815.1 883.0 1018.9 1086.8 1200.0
Detempering
! eagleJI.scl ! Eagle 53 detempering, John O'Sullivan, key of E 12 ! 1/1 16/15 9/8 6/5 5/4 4/3 7/5 3/2 8/5 5/3 9/5 5/8 2/1
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. ("Strong" according to the criteria 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 criteria described in Eagle 53 Article (2017)).
- These good chords must be playable on a fretted instrument such as a guitar.
Relationship to other scales
Eagle 53 is identical to Euler's Genus Diatonico-chromaticum and Ellis' Duodene, except that those used 45/32 instead of 7/5 in their just version.
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.
Music
- Taking Flight - Xotla (2019)
Further reading
- Eagle 53 Article - John O'Sullivan (2017)
- Eagle Tuning Facebook group
- johnsmusic7.com: O'Sullivan's website. Contains further material on Eagle 53 among other topics.