14-EDD
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Dot-Guide for 14-EDD instruments
14-EDD Fretboard is based on the formula (Scale_Length/(2^(x/14))). Mark Allan Barnes, in his intuition, designed a Dot-Pattern that show us the middle step between two 7 EDDs :
14-EDD Mark Allan Barnes Dot-Guide |
The 7-EDD dot-guide, no obstantly, can be resumed by this way :
14-EDD Dot-Guide, simplified form |
The dots are in the places 3· 5· 7· 9· 11· 14: 17· 19· 21· 23· 25· 28: & 31· graphics a scale of 2L4s 3;2 Relation, 3 2 2 2 2 3.
Step | Purdal size | Cent size |
01 | 707,1 | 85.71 |
02 | 1414,3 | 171.43 |
03· | 2121,4 | 257.14 |
04 | 2828,6 | 342.86 |
05· | 3535,7 | 428.57 |
06 | 4242,9 | 514.29 |
07· | 4950 | 600 |
08 | 5657,1 | 685.71 |
09· | 6364,3 | 771.43 |
10 | 7071,4 | 857.14 |
11· | 7778,6 | 942.86 |
12 | 8485,7 | 1028.57 |
13 | 9192,9 | 1114.29 |
14\0: | 9900\0 | 1200\0 |
Another way for a 14-EDD dot-guide, like a interesting decorative form, is like this:
14-EDD Dot-Guide, alterned form |
By this way obtains a scale of 4L2s: 3 1 3 3 1 3, placing the dots in 3· 4· 7· 10· 11· 14: 17· 18· 21· 24· 25· 28: & 31·
Step | Purdal size | Cent size |
01 | 707,1 | 85.71 |
02 | 1414,3 | 171.43 |
03· | 2121,4 | 257.14 |
04· | 2828,6 | 342.86 |
05 | 3535,7 | 428.57 |
06 | 4242,9 | 514.29 |
07· | 4950 | 600 |
08 | 5657,1 | 685.71 |
09 | 6364,3 | 771.43 |
10· | 7071,4 | 857.14 |
11· | 7778,6 | 942.86 |
12 | 8485,7 | 1028.57 |
13 | 9192,9 | 1114.29 |
14\0: | 9900\0 | 1200\0 |