Dot-Guide for 8-EDD instruments


8-EDD Fretboard is based on the formula (Scale_Length/(2^(x/8))). In 8-EDD, a very simple dot-guide can be sufficient for orientation into the fretboard, like this :
8-EDO_Dot-Guide_0.png
8-EDD Dot-Guide, form 1

The dots are in the places 3· 5· 8: 11· 13· 16: remembering the simpleness of the 5 & 7 EDDs, denoting the scale of 2L1s 3;2 Relation, 3 2 3.

Step
Purdal size
Cent size
1
1237,5
150
2
2475
300

3712,5
450
4
4950
600

6187,5
750
6
7425
900
7
8662,5
1050
8\0:
9900\0
1200\0