Guitar Frets are laid out to accomplish an equal tempered division of the octave. Each set of twelve frets represents an octave. The twelfth fret divides the scale length exactly into two halves, and the 24th fret position divides one of those halves in half again. The ratio of the spacing of two consecutive frets is formula_1 (twelfth root of two). In practice, luthiers determine fret positions using the constant 17.817—an approximation to 1/(1-1/formula_1). If the nth fret is a distance x from the bridge, then the distance from the (n+1)th fret to the bridge is x-(x/17.817). Frets are available in
Yamaha electric guitar models straight with low action and a wide fretboard. The RGX312 (1987–1988) is a double cutaway rock style guitar available in Red, Black, or White finish. Specifications: Original List Price: $429.00 Neck - single coil Middle - single coil Bridge - Humbucker Construction: String length: 628mm Nut width: 41mm The RGX312II (1988–1993) is a double cutaway rock style guitar available in Red, Black, White, or Silver Pearl finish. The guitar is set up with Yamaha pickups as follows: Original List Price: $449.00 Neck - single coil Middle - single coil Bridge - Humbucker Construction: String length: 628mm Nut width: 43mm A