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.

F Lydian Guitar Scale

Guitar scale in Open A tuning — fretboard diagram

Tuning

Frets

F Lydian in Open A — Notes and Intervals

The F Lydian scale is the fourth mode of the major scale and arguably the brightest sound in music theory. On Guitar, the notes are F, G, A, B, C, D, E. It is known for its ethereal, dreamlike, and cinematic quality. Because it avoids the pull of the perfect fourth, it is a favorite for film composers wanting to evoke a sense of wonder or otherworldly space. The diatonic chords of F Lydian are FMaj7, G7, Am7, Bm7b5, CMaj7, Dm7, Em7. Commonly used in Film Scores, Progressive Rock, Fusion, Ambient, Dream Pop. Notable players include Joe Satriani, Steve Vai, John Williams, Hans Zimmer. Use over Maj7#11, Maj9 chords. Ideal for non-resolving major passages. Avoid when the music needs to feel grounded or resolved.

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

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

Degrees: 1 2 3 #4 5 6 7

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

Number of notes: 7

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

Diatonic Chords

FMaj7 — G7 — Am7 — Bm7♭5 — CMaj7 — Dm7 — Em7

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

EtherealDreamyFloatingCinematicWondrous

The #4 (tritone from root) eliminates the gravitational pull of the perfect 4th, creating a sensation of weightless suspension — the reason film composers use it for 'wonder' and 'awe'.

Chord Progressions Using This Scale

I – II – IV – I (Lydian II)Pop / Rock — Euphoric

Explore This Scale in Other Tunings

← All Guitar scales in Open A tuning