Pi-edo: Difference between revisions

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BudjarnLambeth (talk | contribs)
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Mark as novelty. Might as well be specified as 1ed2^(1/pi) or APS(1/pi oct)
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{{Infobox ET|1ed697/559}}
{{Infobox ET|1ed697/559}}
'''Pi-EDO''', or '''3.141...EDO''' is a nonoctave [[equal-step tuning]] in which ''pi'' number of steps occur per octave. It does not approximate any simple harmonics well, except for the 3rd harmonic. This lends the tuning to use with custom inharmonic timbres. It has the potential to facilitate music far removed from any conventional harmonic or melodic traditions.
'''π-edo''', '''1ed2<sup>1/π</sup>''', or '''APS(1/π oct)''' is a nonoctave [[equal-step tuning]] in which π steps occur per [[octave]]. It does not approximate any simple [[harmonic]]s well, except for the [[3/1|3rd harmonic]]. This lends the tuning to use with custom inharmonic timbres. It has the potential to facilitate music far removed from any conventional harmonic or melodic traditions.


==Harmonics==
== Harmonics ==
{{harmonics in cet|title=Approximation of harmonics in pi-EDO|381.971863421|prec=1|columns=11}}
{{Harmonics in cet|title=Approximation of harmonics in π-edo|381.971863421|prec=1|columns=11}}


[[Category:Non-integer edos]]
[[Category:Non-integer edos]]

Revision as of 08:42, 28 February 2024

This page presents a novelty topic.

It may contain ideas which are less likely to find practical applications in music, or numbers or structures that are arbitrary or exceedingly small, large, or complex.

Novelty topics are often developed by a single person or a small group. As such, this page may also contain idiosyncratic terms, notation, or conceptual frameworks.

← 0ed697/559 1ed697/559 2ed697/559 →
Prime factorization n/a
Step size 381.972 ¢ 
Octave 3\1ed697/559 (1145.92 ¢)
Twelfth 5\1ed697/559 (1909.86 ¢)
Consistency limit 7
Distinct consistency limit 4
Special properties

π-edo, 1ed21/π, or APS(1/π oct) is a nonoctave equal-step tuning in which π steps occur per octave. It does not approximate any simple harmonics well, except for the 3rd harmonic. This lends the tuning to use with custom inharmonic timbres. It has the potential to facilitate music far removed from any conventional harmonic or melodic traditions.

Harmonics

Approximation of harmonics in π-edo
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) -54.1 +7.9 -108.2 -112.5 -46.2 +68.9 -162.3 +15.8 -166.6 +50.4 -100.3
Relative (%) -14.2 +2.1 -28.3 -29.5 -12.1 +18.0 -42.5 +4.1 -43.6 +13.2 -26.2
Step 3 5 6 7 8 9 9 10 10 11 11