Guitar 8-String Standard Tuner — Tune to 8-String Standard in Your Browser

8-String Standard extends the 7-string concept further: F# B E A D G B E, low to high. The eighth string sits a perfect fourth below the low B of a 7-string, putting the lowest pitch at F#1 — within the range of a piano's lowest octave. This is genuinely orchestral bass territory on a guitar.

The 8-string is a 21st-century invention in mainstream music. Meshuggah used custom 8-strings throughout the 1990s and 2000s, and Tosin Abasi (Animals as Leaders) brought the 8-string to wider attention in the late 2000s as the central voice of the djent and modern progressive scene. Large-bodied jazz 8-strings exist (Charlie Hunter plays one) but they are configured differently — five guitar strings above three bass strings — and serve a different purpose.

The mechanical demands are real. Scale length must be at least 27 inches; most 8-strings are 28 or 30 inches to keep the F# clean. String gauges typically run 9-80 or 10-95, with the 8th string thicker than most bass G strings. Pickups must be designed specifically for the wider string spacing and lower fundamental — a generic humbucker will fail to track the F#1 cleanly.

For a guitarist coming from 6- or 7-string, the 8-string demands new technique above all else. The fretboard width pushes 7+ inches, which forces a more piano-like left-hand position. Palm-muting precision becomes critical because riffs often span all eight strings rapidly. Honest advice: do not buy an 8-string unless you have a specific musical reason. The instrument punishes generalist playing and rewards a focused, often-ensemble-style approach.