41ed4: Difference between revisions

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{{Infobox ET}}
{{Infobox ET}}
'''41ed4''' is the [[Ed4|equal division of the double octave]] into 41 parts of 58.54 [[cent|cents]] each, corresponding to 20.5edo or every second step of [[41edo]].
{{ED intro}} It corresponds to 20.5edo, or every second step of [[41edo]].


The [[Kite Guitar]] (see also [https://kiteguitar.com KiteGuitar.com] and [http://tallkite.com/misc_files/The%20Kite%20Tuning.pdf Kite Tuning]) is a guitar fretting using every other step of 41edo, i.e. 41ed4 or "20½-edo". However, the interval between two adjacent open strings is always an odd number of 41-edosteps. Thus each string only covers 41ed4, but the full edo can be found on every pair of adjacent strings.
The [[Kite Guitar]] (see also [https://kiteguitar.com KiteGuitar.com] and [http://tallkite.com/misc_files/The%20Kite%20Tuning.pdf Kite Tuning]) is a guitar fretting using every other step of 41edo, i.e. 41ed4 or "20½-edo". However, the interval between two adjacent open strings is always an odd number of 41-edosteps. Thus each string only covers 41ed4, but the full edo can be found on every pair of adjacent strings.
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Latest revision as of 14:40, 20 February 2025

← 39ed4 41ed4 43ed4 →
Prime factorization 41 (prime)
Step size 58.5366 ¢ 
Octave 21\41ed4 (1229.27 ¢)
Twelfth 32\41ed4 (1873.17 ¢)
Consistency limit 1
Distinct consistency limit 1

41 equal divisions of the 4th harmonic (abbreviated 41ed4) is a nonoctave tuning system that divides the interval of 4/1 into 41 equal parts of about 58.5 ¢ each. Each step represents a frequency ratio of 41/41, or the 41st root of 4. It corresponds to 20.5edo, or every second step of 41edo.

The Kite Guitar (see also KiteGuitar.com and Kite Tuning) is a guitar fretting using every other step of 41edo, i.e. 41ed4 or "20½-edo". However, the interval between two adjacent open strings is always an odd number of 41-edosteps. Thus each string only covers 41ed4, but the full edo can be found on every pair of adjacent strings.

Intervals

Steps Cents Approximate ratios
0 0 1/1
1 58.5 30/29
2 117.1
3 175.6 21/19
4 234.1
5 292.7 13/11
6 351.2
7 409.8 19/15
8 468.3 17/13
9 526.8 23/17
10 585.4 7/5
11 643.9
12 702.4
13 761
14 819.5
15 878
16 936.6 12/7
17 995.1
18 1053.7 11/6
19 1112.2
20 1170.7
21 1229.3
22 1287.8
23 1346.3
24 1404.9
25 1463.4
26 1522 12/5, 29/12
27 1580.5 5/2
28 1639
29 1697.6
30 1756.1
31 1814.6
32 1873.2
33 1931.7
34 1990.2 19/6
35 2048.8
36 2107.3
37 2165.9 7/2
38 2224.4
39 2282.9
40 2341.5
41 2400

Harmonics

Approximation of harmonics in 41ed4
Harmonic 2 3 4 5 6 7 8 9 10 11 12
Error Absolute (¢) +29.3 -28.8 +0.0 +23.4 +0.5 +26.3 +29.3 +1.0 -5.8 +4.8 -28.8
Relative (%) +50.0 -49.2 +0.0 +40.0 +0.8 +44.9 +50.0 +1.7 -10.0 +8.2 -49.2
Steps
(reduced)
21
(21)
32
(32)
41
(0)
48
(7)
53
(12)
58
(17)
62
(21)
65
(24)
68
(27)
71
(30)
73
(32)
Approximation of harmonics in 41ed4
Harmonic 13 14 15 16 17 18 19 20 21 22 23
Error Absolute (¢) +8.3 -3.0 -5.3 +0.0 +12.1 -28.3 -4.8 +23.4 -2.5 -24.5 +15.6
Relative (%) +14.1 -5.1 -9.1 +0.0 +20.7 -48.3 -8.3 +40.0 -4.3 -41.8 +26.7
Steps
(reduced)
76
(35)
78
(37)
80
(39)
82
(0)
84
(2)
85
(3)
87
(5)
89
(7)
90
(8)
91
(9)
93
(11)