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# Dorian Guitar Scale

Guitar scale in Open A tuning — fretboard diagram

Tuning

Frets

A# Dorian in Open A — Notes and Intervals

The A# Dorian scale is the second mode of the major scale, offering a soulful and sophisticated minor sound. On Guitar, it contains the notes A#, C, C#, D#, F, G, G#. Because it features a major sixth, it sounds brighter and more hopeful than the natural minor. It is the go-to scale for jazz, funk, and modal blues. The diatonic chords of A# Dorian are A#m7, Cm7, C#Maj7, D#7, Fm7, Gm7b5, G#Maj7. Commonly used in Funk, Jazz, Fusion, Neo-Soul, Blues. Notable players include Miles Davis, Herbie Hancock, Carlos Santana, D'Angelo. Use over m7, m9, m11, m13 chords. The go-to scale for any minor chord in funk, jazz, and soul. Works especially well over long minor vamps.

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

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

Degrees: 1 2 b3 4 5 6 b7

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

Number of notes: 7

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

Diatonic Chords

A♯m7 — Cm7 — C♯Maj7 — D♯7 — Fm7 — Gm7♭5 — G♯Maj7

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

SoulfulHopefulSophisticatedGroovy

The natural 6th degree (vs b6 in Aeolian) gives Dorian its signature 'hopeful minor' character — darker than major, but brighter than natural minor.

Chord Progressions Using This Scale

I – V – vi – IV (Pop Progression)Pop / Rock — Hope & Joy
vi – IV – I – V (Melancholic Variation)Pop / Rock — Melancholy
ii – V – I (Jazz ii–V–I)Jazz / Soul — Sophistication
ii – bII7 – I (Tritone Substitution)Jazz / Soul — Mystery & Tension
IV – V – iii – vi (Royal Road (J-Pop))World / J-Pop — Yearning & Nostalgia
IV – V – iii – vi – ii – V – I (Japanese Circle)World / J-Pop — Complete Resolution
i – iv – i – V (Minor Blues)Blues — Melancholy
i – VI – III – VII (Cinematic Minor)Contemporary / Film — Dramatic & Dark
vi – viM7 – vi7 – II (Descending Minor Cliché)Classical / Pop — Romance & Intrigue
iv – ♭VII – I (Backdoor Cadence)Jazz / Soul — Soulful & Unexpected

Explore This Scale in Other Tunings

← All Guitar scales in Open A tuning