What is Open A tuning?

Open A tuning is E-A-E-A-C#-E (low to high). Strumming all strings produces an A major chord. It's structurally the same as Open G but one whole step higher.

Is Open A the same as Open G with a capo?

Yes, musically they are identical — Open G with a capo at fret 2 gives you the same pitches as Open A. Many players use this approach. Without a capo, Open A has higher string tension which some slide players prefer for better control.

What scales work in Open A?

The A major pentatonic and A blues scale are natural choices. A Mixolydian gives a bluesy feel, and the A major scale works for country and folk styles.

G Mixolydian B6 Guitar Scale

Guitar scale in Open A tuning — fretboard diagram

Tuning

Frets

G Mixolydian B6 in Open A — Notes and Intervals

The G Mixolydian B6 scale is a melancholic dominant scale used when a song is in a major key but the dominant chord needs to resolve into a minor key. On Guitar, the notes are G, A, B, C, D, Eb, F. It provides a bridge between the bright major and the sad minor worlds, perfect for emotional transitions. Commonly used in Jazz, Film Scores, Classical, Melodic Metal. Notable players include Hans Zimmer, Ennio Morricone. Use over dominant 7th chords that resolve to minor (V7 → im). The scale that bridges major happiness and minor sadness.

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

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

Degrees: 1 2 3 4 5 b6 b7

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

Number of notes: 7

Tuning: Open A (E-A-E-A-C#-E)

Also known as: melodic minor fifth mode, hindu

About Open A Tuning

Open A tuning (E-A-E-A-C#-E) produces an A major chord when strummed open. It is structurally identical to Open G tuned up one whole step, delivering a brighter, more tense sound that works particularly well for slide guitar centered on the key of A.

Jimmy Page used Open A with a slide on Led Zeppelin's 'In My Time of Dying' from Physical Graffiti (1975). Rory Gallagher also employed Open A for his raw, energetic slide work. Many players achieve Open A by simply placing a capo at the 2nd fret in Open G tuning, which is why dedicated Open A usage is less commonly discussed. However, without a capo, Open A gives direct access to the open A string resonance and a different feel under the fingers due to the higher tension.

BluesSlide GuitarRockDelta Blues

Notable artists: Jimmy Page, Rory Gallagher, Delta blues players

Best for: Slide guitar in the key of A, blues playing, and situations where you need the brightness of Open G tuned up without a capo

Musical Character

MelancholicBittersweetTransitionalEmotional

A 'sad dominant' — major 3rd says happy, b6 says sad, b7 says dominant. This emotional contradiction makes it perfect for scenes of bittersweet triumph or pyrrhic victory.

Explore This Scale in Other Tunings

← All Guitar scales in Open A tuning