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
Standard tuning and drop down to lower open string notes. This is also more practical for the whole playing range of E–C♯ (on a 21-fret guitar), as it can fit easily into the treble clef when written as E–C♯. Transposing by an octave may be explicitly indicated by a suboctave clef, where a treble clef has an '8' placed below it, or a normal treble clef may be used for simplicity. Other plucked string instruments and their respective standard tunings include: Standard tuning In music, standard tuning refers to the typical tuning of a string instrument. This notion is contrary to that