What Is Standard Tuning?

Standard tuning is E–A–D–G–B–E, from thickest (6th) string to thinnest (1st). Most string pairs are tuned a perfect fourth apart; the one exception is G to B, which is a major third. That single irregular pair is the famous "B-string quirk" that shifts chord and scale shapes by one fret when they cross onto the B string.

Why this tuning won

It's a compromise between two demands: fourths make scales easy to finger, but an all-fourths guitar would make common open chords nearly impossible to grab. The major third in the middle bends the layout so that C, G, D, A, and E chords fall comfortably under four fingers. The full story is in Why Is the Guitar Tuned E-A-D-G-B-E?

What it means for learning the neck

• The two E strings are identical (two octaves apart) — memorize one, get the other free.
• Any pattern moved across the D→G string pair keeps its shape; crossing G→B shifts it up one fret.
• Octave shapes and interval shapes come in exactly two variants: one for fourths pairs, one adjusted for the B string.

Mnemonics for the string names live in Guitar String Names and How to Remember Them; the most common alternate tuning is covered in Drop D Tuning Explained.

Related terms

• Open string — the notes standard tuning sets
• Perfect fourth — the interval between most string pairs
• Major third — the G→B exception