Open G Tuning — Five Strings, Three Chords, and Most of the Rolling Stones

Standard tuning is a compromise. It is arranged so that scales, chords and melodies are all reasonably playable, and nothing is ideal. Open tunings give up that balance deliberately: they make one thing very easy, and accept that other things get harder.

Open G is the most consequential of them. Tune to D–G–D–G–B–D, strum without touching a fret, and the guitar sounds a G major chord. Barre all six strings at the fifth fret and you get C. Barre at the seventh and you get D. The instrument has become, in effect, a machine for playing I–IV–V with one finger.

What actually changes

Coming from standard (E–A–D–G–B–E, low to high), three strings move and three stay put:

• ·Low E drops a whole step to D.
• ·A drops a whole step to G.
• ·D, G and B are unchanged.
• ·High E drops a whole step to D.

Three strings down a whole step, nothing else touched. That is a small physical change with a large musical consequence: the open strings now spell G–B–D with octave doublings, which is a G major triad and nothing else. There is no fourth, no seventh, no ambiguity. Every open string belongs.

The five-string question

Keith Richards’ version of open G is the one most people have actually heard, and it has a modification: he removes the low sixth string entirely, leaving G–D–G–B–D.

The reasoning is straightforward once you look at the notes. In full open G, the lowest string is D — the fifth of the chord, not the root. Strum the whole instrument and the bass note is a fifth, which gives every open chord a slightly unsettled, second-inversion quality. Drop that string and the lowest note becomes G. The chord sits on its root, the low end stops competing with the bass player, and what remains is a tightly voiced, mid-focused chord that cuts through a band mix rather than filling it.

Five strings and three notes. Richards has described his tuning in roughly those terms for decades, and the arithmetic is the whole idea.

That voicing is the sound of a specific and very large body of work: the rhythm parts on Honky Tonk Women, Brown Sugar, Start Me Up and a good deal of the Rolling Stones catalogue from the late 1960s onward.

What you gain

• ·One-finger major chords anywhere on the neck. A barre at fret n gives the major chord n semitones above G.
• ·Drones. Open strings ring against fretted notes constantly, which is why open G is one of the standard tunings for slide guitar — a slide cannot fret a conventional shape, but it can land cleanly on a barre.
• ·Voicings that are awkward or impossible in standard tuning, because the intervals between strings have changed.
• ·A tonal centre the instrument reinforces by default: everything you do sits inside G until you make it do otherwise.

What you lose

• ·Every shape you know. The fretboard geometry has changed on four of six strings; standard-tuning chord grips no longer produce the chords they used to.
• ·Minor chords, which now require fretting individual notes rather than a barre — open G is a major tuning and does not hand you minors for free.
• ·Easy movement between distant keys. The tuning is optimised for G, C and D; anything further afield fights you.
• ·The ability to switch songs quickly, unless you keep a second guitar tuned to standard, which is what most players who use open G actually do.

Getting started

Tune down slowly and check pitch twice — dropping three strings changes the tension on the neck, so the first strings you tune will have drifted by the time you finish the last. Then spend the first session doing nothing but barring across the neck at the fifth, seventh and twelfth frets, listening to how the open and fretted strings interact.

The productive mindset is not "relearn the fretboard". It is "learn three barres and a handful of partial shapes, and let the open strings do the rest". Open G rewards restraint; most of its best-known parts use very little of the neck.