@item
@code{fret-count} -- The number of frets. Default@tie{}4.
@item
+@code{fret-distance} -- Multiplier to adjust the distance between frets.
+Default@tie{}1.0.
+@item
@code{fret-label-custom-format} -- The format string to be used label
the lowest fret number, when @code{number-type} equals to
@code{custom}. Default@tie{}\"~a\".
@item
@code{string-count} -- The number of strings. Default@tie{}6.
@item
+@code{string-distance} -- Multiplier to adjust the distance between strings.
+Default@tie{}1.0.
+@item
@code{string-label-font-mag} -- The magnification of the font used to
label fingerings at the string, rather than in the dot. Default value
0.6 for @code{normal} orientation, 0.5 for @code{landscape} and