2ed5

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Revision as of 20:21, 3 October 2024 by BudjarnLambeth (talk | contribs) (Interval table: Replaced auto-generated table of intervals with manually curated table)
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← 1ed5 2ed5 3ed5 →
Prime factorization 2 (prime)
Step size 1393.16 ¢ 
Octave 1\2ed5 (1393.16 ¢)
(convergent)
Twelfth 1\2ed5 (1393.16 ¢)
(semiconvergent)
Consistency limit 2
Distinct consistency limit 2
Special properties

2 equal divisions of the 5th harmonic (abbreviated 2ed5) is a nonoctave tuning system that divides the interval of 5/1 into 2 equal parts of about 1390 ¢ each. Each step represents a frequency ratio of 51/2, or the 2nd root of 5.

Theory

Odd harmonics

Approximation of harmonics in 2ed5
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +193 -509 +386 +0 -316 -583 +579 +376 +193 +28 -122
Relative (%) +13.9 -36.5 +27.7 +0.0 -22.7 -41.8 +41.6 +27.0 +13.9 +2.0 -8.8
Steps
(reduced)
1
(1)
1
(1)
2
(0)
2
(0)
2
(0)
2
(0)
3
(1)
3
(1)
3
(1)
3
(1)
3
(1)

Interval table

Steps Cents Approximate Ratios
0 0 1/1
1 1393.157 9/4
2 2786.314 5/1