The fundamental scale length is the length of a line drawn from
the middle of the nut to the middle of the bridge.
In this FretFind frontend that line is the perpendicular bisector of both the nut and the bridge.
I call this length "fundamental" because the on a standard instrument
with a narrow nut and a wide bridge the outer strings
actaually have a slightly longer scale length.
The string width at the nut is the distance along the nut from the center
of the first string to the center of the last string. (Please note, FretFind will space
the remaining strings equally between these two points. Custom string spacings
can be achieved with FretFind using the advanced frontend.)
The string width at the bridge is the distance along the bridge from the center
of the first string to the center of the last string. (Please note, FretFind will space
the remaining strings equally between these two points. Custom string spacings
can be achieved with FretFind using the advanced frontend.)
The fretboard overhang is the distance from the center of outer strings to edge of nut or bridge.
There are four input modes for overhang. Equal: you enter a single value and the overhang will be constant.
Nut & Bridge: allows you to specify one overhang at the nut and another overhang at the bridge.
First & Last: allows you to specify one overhang for the first string and another for the last string.
All: you specify an overhang for all four locations seperately.
(Please note, in FretFind the first string is shown on the far right
where the high E string would be on a typical right-handed guitar.
The last string is on the far left, where the low E would be found.)
The calculation method determins how FretFind calculates fret placement.
There are two input modes. Equal: uses the Xth root of two, a standard
method for calculating equal temperaments. You enter the number of tones per octave.
Scala: uses a Scala SCL file which allows you to specify
each scale step exactly in either ratios or cents.
If you are interested in creating your own scale, please read this description of the
Scala scale file format.
Otherwise try a scale from the Scala scale archive, found at the very bottom of the
Scala download page.
You can learn more about Scala at the Scala home page.
Enter the scale step (of the scale defined above) to which each string will be tuned.
For example a standard guitar in the key of E would be tuned 0, 7, 3, 10, 5, 0.
The first string is the string to the far right on the fretboard.
This step is not important for the Equal calculation method.
Entering a tuning for the Scala calculation method will very likely result in partial frets.
Uses SVG
The two dimensional fretboard visualization on this site is done with
Scalable Vector Graphics (SVG) or Portable Network Graphics (PNG).
If you cannot see the guitar image above this paragraph,
you will not be able to take advantage of the SVG visualizaton feature.
Adobe provides a freely available SVG plug-in for most platforms.
Why SVG?
"SVG is a royalty-free
vendor-neutral open standard developed under the W3C Process."
It is XML. A plain-text format that is legible to both computers and people:
easily created with a scripting language; easily edited in a text editor.
Vector graphics, like SVG, offer precise scalable measurements. It looks good on the screen.
On paper, it makes an excellent blueprint for your designs.