Dot-Guide for 19-EDD instruments



19-EDD Fretboard is based on the formula (Scale_Length/(2^(x/19))). 19-EDD is other EDD that represents one of 1/3-tone systems for the Diatonic System, also known as Salinas system 1/3-comma Meantone, in which the conventional spots is highly accepted for 19-EDD players :
19-EDO_Dot-Guide_0.png
19-EDD dot-guide

The dots are in the places 5· 8· 11· 14· 19: 24· 27· 30· 33· 38: 43· denoting a scale of 2L3s 5;3 Relation, 5 3 3 3 5.
Step
Purdal size
Cent size
01
521,1
63.16
02
1042,1
126.32
03
1563,2
189.47
04
2084,2
252.63
05·
2605,3
315.79
06
3126,3
378.95
07
3647,4
442.11
08·
4168,4
505.26
09
4689,5
568.42
10
5210,5
631.58
11·
5731,6
694.74
12
6252,6
757.89
13
6773,7
821.05
14·
7294,7
884.21
15
7815,8
947.37
16
8336,8
1010.53
17
8857,9
1073.68
18
9378,9
1136.84
19\0:
9900\0
1200\0

Another way for 19-EDD dot-guide, might less conventional, is this :
19-EDO_Dot-Guide_1.png
19-EDD "Odd Patton" Dot-Guide

The dots are suited in the places 4· 5· 9· 10· 14· 15· 19: 23· 24· 28· 29· 33· 34· 38: 42· 43· visualizing a decorative odd pattern and denoting a scale of 4L3s 4;1 Relation, 4 1 4 1 4 1 4.
Step
Purdal size
Cent size
01
521,1
63.16
02
1042,1
126.32
03
1563,2
189.47
04·
2084,2
252.63
05·
2605,3
315.79
06
3126,3
378.95
07
3647,4
442.11
08
4168,4
505.26
09·
4689,5
568.42
10·
5210,5
631.58
11
5731,6
694.74
12
6252,6
757.89
13
6773,7
821.05
14·
7294,7
884.21
15·
7815,8
947.37
16
8336,8
1010.53
17
8857,9
1073.68
18
9378,9
1136.84
19\0:
9900\0
1200\0