Dot-Guide for 25-EDD instruments


25-EDD Fretboard is based on the formula (Scale_Length/(2^(x/25))). 25-EDD is the 3rd system in which incorporates the Armodue system, after of 16 & 23 EDDs :
25-EDD fretboard 0.png
25-EDD Superdiatonic Dot-Guide

The dots are in the places 5· 8· 11· 14· 17· 20· 25: 30· 33· 36· 39· 42· 45· 50: 55· visualizing clearly the MOSscale of 2L5s 5;3 Relation, 5 3 3 3 3 3 5.
But too, 25-EDD will be represented with the simple 5-EDD subset for dot-guide, denoting its "pentimmetric" essence with great impetus :
25-EDD fretboard 1.png
25-EDD equal-sized Dot-Guide

The dots are in the places 5· 10· 15· 20· 25: 30· 35· 40· 45· 50: 55·
Step (form 1)
Purdal size
Cent size
|
Step (form 2)
Purdal size
Cent size
01
396
48
|
01
396
48
02
792
96
|
02
792
96
03
1188
144
|
03
1188
144
04
1584
192
|
04
1584
192
05·
1980
240
|
05·
1980
240
06
2376
288
|
06
2376
288
07
2772
336
|
07
2772
336
08·
3168
384
|
08
3168
384
09
3564
432
|
09
3564
432
10
3960
480
|
10·
3960
480
11·
4356
528
|
11
4356
528
12
4752
576
|
12
4752
576
13
5148
624
|
13
5148
524
14·
5544
672
|
14
5544
672
15
5940
720
|
15·
5940
720
16
6336
768
|
16
6336
768
17·
6732
816
|
17
6732
816
18
7128
864
|
18
7128
864
19
7524
912
|
19
7524
912
20·
7920
960
|
20·
7920
960
21
8316
1008
|
21
8316
1008
22
8712
1056
|
22
8712
1056
23
9108
1104
|
23
9108
1104
24
9504
1152
|
24
9504
1152
25\0:
9900
1200
|
25\0:
9900
1200