Eagle 53: Difference between revisions

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O'Sullivan designed Eagle 53 to meet the following criteria:
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)).
# 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.
# 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)).
# 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.
# 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 consonances even more in-tune, at least in the most important keys, while also making available new exotic consonances and melodies which 12edo lacks.
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.
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.