G# Major Guitar Scale
Guitar scale in Open A tuning — fretboard diagram
G# Major in Open A — Notes and Intervals
The G# Major scale is the fundamental pillar of Western music, also known as the Ionian mode. On Guitar, it contains the notes G#, A#, C, C#, D#, F, G. It is characterized by a bright, stable, and triumphant sound, making it the primary choice for expressing joy and clarity. It is the essential framework for building major triads and functional harmony in pop, classical, and folk music. The diatonic chords of G# Major are G#maj7, A#m7, Cm7, C#maj7, D#7, Fm7, Gm7b5. Commonly used in Pop, Classical, Country, Folk, Rock. Notable players include The Beatles, Taylor Swift, John Mayer. Use over major triads, Maj7, Maj9, and any diatonic chord within the key. The default choice for major-key songwriting.
Notes: G#, A#, C, C#, D#, F, G
Intervals: 1P, 2M, 3M, 4P, 5P, 6M, 7M
Degrees: 1 2 3 4 5 6 7
Formula: W-W-H-W-W-W-H
Number of notes: 7
Tuning: Open A (E-A-E-A-C#-E)
Also known as: ionian
Diatonic Chords
G♯maj7 — A♯m7 — Cm7 — C♯maj7 — D♯7 — Fm7 — Gm7♭5
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.
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
The universal reference scale. All other scales are measured against its interval structure (W-W-H-W-W-W-H).
Chord Progressions Using This Scale
- I – V – vi – IV (Pop Progression)Pop / Rock — Hope & Joy
- vi – IV – I – V (Melancholic Variation)Pop / Rock — Melancholy
- I – vi – IV – V (50s Doo-Wop)Pop / Rock — Nostalgia
- IV – V – I – vi (Unresolved Cycle)Pop / Rock — Dreamy & Cyclical
- IV – I – V – vi (Sensitive Pop)Pop / Rock — Uplifting
- I – IV – V (Rock & Folk Classic)Pop / Rock — Energy & Drive
- I – V – IV (Rock Ballad)Pop / Rock — Anthemic
- I – V – vi – iii – IV – I – IV – V (Pachelbel's Canon)Classical / Pop — Epic & Nostalgic
- I – vi – ii – V (Jazz Turnaround)Jazz / Soul — Sophistication
- 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 – ♯I°7 – ii – V (Diminished Cliché)Jazz / Soul — Nostalgic & Vintage