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 ==

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== 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.johnsmusic7.com/ johnsmusic7.com]: O'Sullivan's website. Contains further material on Eagle 53 among other topics.

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 </pre>
+== 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 ==
@@ Line 49: / Line 63: @@
 == 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.johnsmusic7.com/ johnsmusic7.com]: O'Sullivan's website. Contains further material on Eagle 53 among other topics.