What is Open G tuning?

Open G tuning changes the strings to D-G-D-G-B-D (low to high). Strumming all strings open produces a G major chord. Barring any fret gives you a major chord at that position, which is ideal for slide guitar.

What scales work in Open G tuning?

The G major pentatonic and G blues scale are natural fits. For slide playing, the major scale patterns align perfectly with the open tuning. The Mixolydian mode also works beautifully for a bluesy feel.

Why do slide guitarists use Open G?

Open G makes slide guitar much more intuitive. Since barring across all strings at any fret produces a major chord, you can play melodies and chords simply by moving the slide up and down the neck. This is why it's been the standard tuning for blues slide guitar.

C# Mixolydian Guitar Scale

Guitar scale in Open G tuning — fretboard diagram

Tuning

Frets

C# Mixolydian in Open G — Notes and Intervals

The C# Mixolydian scale is the fifth mode of the major scale and the heart of rock and roll and blues. On Guitar, it contains the notes C#, D#, F, F#, G#, A#, B. It combines the stability of a major sound with a more relaxed, folk-like ending, perfectly suited for soloing over dominant seventh chords and providing a bluesy, soulful vibe to major-key songs. The diatonic chords of C# Mixolydian are C#7, D#m7, Fm7b5, F#Maj7, G#m7, A#m7, BMaj7. Commonly used in Blues, Rock, Country, Folk, Funk. Notable players include Jimi Hendrix, The Allman Brothers, AC/DC, Stevie Ray Vaughan. Use over dominant 7th chords (7, 9, 13). The primary scale for blues-rock soloing over non-resolving dominant chords.

Notes: C#, D#, F, F#, G#, A#, B

Intervals: 1P, 2M, 3M, 4P, 5P, 6M, 7m

Degrees: 1 2 3 4 5 6 b7

Formula: W-W-H-W-W-H-W

Number of notes: 7

Tuning: Open G (D-G-D-G-B-D)

Also known as: dominant

Diatonic Chords

C♯7 — D♯m7 — Fm7♭5 — F♯Maj7 — G♯m7 — A♯m7 — BMaj7

About Open G Tuning

Open G tuning (D-G-D-G-B-D) produces a G major chord when strummed open, making it the definitive tuning for slide guitar and delta blues. The tuning's natural consonance means that barring across any fret gives you a major chord, which is why it's been the backbone of blues and roots music for over a century.

From Robert Johnson to Keith Richards, Open G has shaped some of the most iconic music ever recorded. Keith Richards famously removes the low 6th string entirely in this tuning, creating his signature five-string sound on songs like 'Start Me Up' and 'Brown Sugar'. For slide players, Open G is essential — it allows clean, singing slide lines across all strings with minimal effort.

BluesSlide GuitarRockCountryFolkRoots

Notable artists: Keith Richards, Robert Johnson, Ry Cooder, Joni Mitchell, The Black Crowes

Best for: Slide guitar, delta blues, Keith Richards-style rock riffs, and open-string fingerpicking

Musical Character

RelaxedBluesyEarthyGroovy

The b7 softens the major scale's resolution, creating a 'relaxed major' that never quite lands. This is the sound of rock and roll — major but with attitude.

Chord Progressions Using This Scale

bVI – bVII – I (Mario Cadence)World / Game Music — Triumph & Victory
I – I – I – I – IV – IV – I – I – V – IV – I – V (12 Bar Blues)Blues — Grit & Soul
I – bVI – bIII – bVII (Epic Borrowed Chords)Contemporary / Film — Epic & Heroic
I – ♭VII – IV (Classic Rock Loop)Pop / Rock — Energy & Drive
I – VI7 – II7 – V (Ragtime Cycle)Jazz / Soul — Playful & Vintage
♭VII – IV – I (Gospel Walk-Up)Blues — Spiritual & Uplifting

Explore This Scale in Other Tunings

← All Guitar scales in Open G tuning