12th Fret Rule: The 12th fret is always exactly halfway between the nut and the saddle — equal to half the scale length. This is the foundation of all fret position calculations. The vibrating string ...
String tension is calculated as: T = UW × (2 × L × f)² where UW = unit weight per inch, L = scale length in inches, and f = frequency in Hz. Increasing gauge raises UW and thus tension at the same ...