Dot-Guide for 22-EDD instruments


22-EDD Fretboard is based on the formula (Scale_Length/(2^(x/22))). For a first instance, the dot-guide on 22-EDD fretboard will be like the sameness of 17 & 12 EDDs :
22-EDD fretboard 0.png
22-EDD dot-guide form 1
The dots are in the places 5· 9· 13· 17· 22: 27· 31· 35· 39· 44: denoting a scale of 2L3s 5;4 Relation, 5 4 4 4 5.
But other approach for 22-EDD dot-guide is valid too :
22-EDD fretboard 1.png
22-EDD dot-guide form 2
The dots are in the places 5· 8· 11· 14· 17· 22: 27· 30· 33· 36· 39· 44: denoting a scale of 2L4s 5;3 Relation, 5 3 3 3 3 5.
Step (form 1)
Purdal size
Cent size
|
Step (form 2)
Purdal size
Cent size
01
450
54.54
|
01
450
54.54
02
900
109.09
|
02
900
109.09
03
1350
163.63
|
03
1350
163.63
04
1800
218.18
|
04
1800
218.18
05·
2250
272.72
|
05·
2250
272.72
06
2700
327.27
|
06
2700
327.27
07
3150
381.81
|
07
3150
381.81
08
3600
436.36
|
08·
3600
436.36
09·
4050
490.90
|
09
4050
490.90
10
4500
545.45
|
10
4500
545.45
11
4950
600
|
11·
4950
600
12
5400
654.54
|
12
5400
654.54
13·
5850
709.09
|
13
5850
709.09
14
6300
763.63
|
14·
6300
763.63
15
6750
818.18
|
15
6750
818.18
16
7200
872.72
|
16
7200
872.72
17·
7650
927.27
|
17·
7650
927.27
18
8100
981.81
|
18
8100
981.81
19
8550
1036.36
|
19
8550
1036.36
20
9000
1090.90
|
20
9000
1090.90
21
9450
1145.45
|
21
9450
1145.45
22\0:
9900
1200
|
22\0:
9900
1200

Another way for dot-guiding valid too, is like this :
22-EDD fretboard 2.png
Visually looks very simple, but it advocates a scale of 4L2s 5;1 Relation, 5 1 5 5 1 5.
Step
Purdal size
Cent size
01
450
54.54
02
900
109.09
03
1350
163.63
04
1800
218.18
05·
2250
272.72
06·
2700
327.27
07
3150
381.81
08
3600
436.36
09
4050
490.90
10
4500
545.45
11·
4950
600
12
5400
654.54
13
5850
709.09
14
6300
763.63
15
6750
818.18
16·
7200
872.72
17·
7650
927.27
18
8100
981.81
19
8550
1036.36
20
9000
1090.90
21
9450
1145.45
22\0:
9900
1200