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.

A Mixolydian Pentatonic Guitar Scale

Guitar scale in Open A tuning — fretboard diagram

Tuning

Frets

A Mixolydian Pentatonic in Open A — Notes and Intervals

The A Mixolydian Pentatonic scale is a dominant-flavored five-note scale that emphasizes the relaxed, bluesy side of the Mixolydian mode. On Guitar, the notes are A, C#, D, E, G. It is an excellent choice for soloing over dominant chords when you want to maintain the simplicity and flow of a pentatonic structure. Commonly used in Blues, Rock, Country, Funk. Notable players include Jimi Hendrix, Dickey Betts, Derek Trucks. Use over dominant 7th chords (7, 9, 13). Simpler than full Mixolydian but captures the essential dominant color.

Notes: A, C#, D, E, G

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

Degrees: 1 2 3 4 b5

Formula: 4-H-W-WH-W

Number of notes: 5

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

Also known as: indian

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

BluesyRelaxedDominantEarthy

Emphasizes the b7 characteristic of the Mixolydian mode within a pentatonic framework, ideal for quick dominant-flavored runs.

Chord Progressions Using This Scale

I – ♭VII – IV (Classic Rock Loop)Pop / Rock — Energy & Drive
I – VI7 – II7 – V (Ragtime Cycle)Jazz / Soul — Playful & Vintage

Explore This Scale in Other Tunings

← All Guitar scales in Open A tuning