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.

C Harmonic Minor Guitar Scale

Guitar scale in Open A tuning — fretboard diagram

Tuning

Frets

C Harmonic Minor in Open A — Notes and Intervals

The C Harmonic Minor scale is a variation of the minor scale that introduces a strong leading tone. On Guitar, the notes are C, D, Eb, F, G, Ab, B. It has a distinctive exotic or Middle Eastern flavor due to the wide gap between its upper notes, and is used to provide the harmonic tension necessary for classical minor-key resolutions. It is a staple in neo-classical metal and flamenco. The diatonic chords of C Harmonic Minor are CmMaj7, Dm7b5, Eb+maj7, Fm7, G7, Abmaj7, Bo7. Commonly used in Metal, Classical, Flamenco, Film Scores, Neoclassical. Notable players include Yngwie Malmsteen, Ritchie Blackmore, Johann Sebastian Bach. Use over m(Maj7), m7, dim7 chords. Essential for creating V7 → i resolutions in minor keys. The raised 7th provides the leading tone that natural minor lacks.

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

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

Degrees: 1 2 b3 4 5 b6 7

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

Number of notes: 7

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

Diatonic Chords

CmMaj7 — Dm7♭5 — E♭+maj7 — Fm7 — G7 — A♭maj7 — Bo7

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

DramaticExoticTenseMajestic

The augmented 2nd interval between the b6 and natural 7 creates an exotic 'Middle Eastern' leap that is both the scale's signature sound and its main challenge for smooth phrasing.

Chord Progressions Using This Scale

i – VII – VI – V (Andalusian Cadence)World / Flamenco — Tension & Drama

Explore This Scale in Other Tunings

← All Guitar scales in Open A tuning