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
Terz guitar guitar tuning on standard scale length guitars at normal string tension. At the 2018 NAMM Show, Reverend Guitars launched an electric Terz guitar in production along with Billy Corgan. Terz guitar Terz guitar (Terz meaning third) refers to either a small sized classical guitar or to the practice of tuning a standard guitar a minor third higher than standard guitar tuning (as though a capo were on the third fret of the guitar). The scale length is generally 530 mm (20.8 inches), though sometimes as long as 560 mm (22 inches). Mauro Giuliani and Caspar Joseph Mertz wrote extensively for