Dot-Guide for 29-EDD instruments
29-EDD Fretboard is based on the formula (Scale_Length/(2^(x/29))). This EDD have a pretty accurate with the 3/2 interval, being the 2nd EDD with that interval more stretched after of 12-EDD, by the side of Pythagorean family, comforms with the common 2L3s dot-guide:
|
29-EDD Dot-guide
|
The dots are in the places 7· 12· 17· 22· 29: 36· 41· 46· 51· 58: 65· denoting its 7;5 relation, 7 5 5 5 7.
Step
|
Purdal size
|
Cent size
|
01
|
341,4
|
41.38
|
02
|
682,8
|
82.76
|
03
|
1024,1
|
124.14
|
04
|
1365,5
|
165.52
|
05
|
1706,9
|
206.9
|
06
|
2048,3
|
248.28
|
07·
|
2389,7
|
289.66
|
08
|
2731
|
331.03
|
09
|
3072,4
|
372.41
|
10
|
3413,8
|
413.79
|
11
|
3755,2
|
455.17
|
12·
|
4096,6
|
496.55
|
13
|
4437,9
|
537.93
|
14
|
4779,3
|
579.31
|
15
|
5120,7
|
620.69
|
16
|
5462,1
|
662.07
|
17·
|
5803,4
|
703.45
|
18
|
6144,8
|
744.83
|
19
|
6486,2
|
786.21
|
20
|
6827,6
|
827.59
|
21
|
7169
|
868.97
|
22·
|
7510,3
|
910.34
|
23
|
7851,7
|
951.72
|
24
|
8193,1
|
993.1
|
25
|
8534,5
|
1034.48
|
26
|
8875,9
|
1075.86
|
27
|
9217,2
|
1117.24
|
28
|
9558,6
|
1158.62
|
29\0:
|
9900\0
|
1200\0
|
A variant of the same dot-guide looks like this:
|
29-EDD "El Duplé" Dot-Guide
|
The dots are in the places 5· 6· 11· 12· 17· 18· 23· 24· 29: 34· 35· 40· 41· 46· 47· 52· 53· 58: 63· 64· denoting a scale of 5L4s 5;1 relation, 5 1 5 1 5 1 5 1 5.
Step
|
Purdal size
|
Cent size
|
01
|
341,4
|
41.38
|
02
|
682,8
|
82.76
|
03
|
1024,1
|
124.14
|
04
|
1365,5
|
165.52
|
05·
|
1706,9
|
206.9
|
06·
|
2048,3
|
248.28
|
07
|
2389,7
|
289.66
|
08
|
2731
|
331.03
|
09
|
3072,4
|
372.41
|
10
|
3413,8
|
413.79
|
11·
|
3755,2
|
455.17
|
12·
|
4096,6
|
496.55
|
13
|
4437,9
|
537.93
|
14
|
4779,3
|
579.31
|
15
|
5120,7
|
620.69
|
16
|
5462,1
|
662.07
|
17·
|
5803,4
|
703.45
|
18·
|
6144,8
|
744.83
|
19
|
6486,2
|
786.21
|
20
|
6827,6
|
827.59
|
21
|
7169
|
868.97
|
22
|
7510,3
|
910.34
|
23·
|
7851,7
|
951.72
|
24·
|
8193,1
|
993.1
|
25
|
8534,5
|
1034.48
|
26
|
8875,9
|
1075.86
|
27
|
9217,2
|
1117.24
|
28
|
9558,6
|
1158.62
|
29\0:
|
9900\0
|
1200\0
|