Classical guitar fingerboard and placed at points that divide the length of string mathematically. The strings' vibrating length is determined when the strings are pressed down behind the frets. Each fret produces a different pitch and each pitch spaced a half-step apart on the 12 tone scale. The ratio of the widths of two consecutive frets is the twelfth root of two (formula_1), whose numeric value is about 1.059463. The twelfth fret divides the string in two exact halves and the 24th fret (if present) divides the string in half yet again. Every twelve frets represents one octave. This arrangement of frets
Eight-string guitar An Infinite Regression") á la funk bassist Larry Graham and the double thumping technique pioneered by Victor Wooten — as well as harp-like arpeggios. Ihsahn of the black metal band Emperor began playing seven-string guitar in 1999 and first played eight-string guitar on his 2010 album "After". Rusty Cooley tunes his eight-string guitar like a standard six-string expanded in both directions. This tuning offers both deeper bass tones than a conventional guitar and extended range in the higher register for lead melodies. Guitarist Justin Broadrick of the English industrial metal band Godflesh introduced his eight-string playing on the 2014 Godflesh