A# Fifth Guitar Arpeggio
Guitar arpeggio in Open A tuning — fretboard diagram
A# Fifth in Open A — Notes and Intervals
Notes: A#, F
Intervals: 1P, 5P
Formula: 7
Number of notes: 2
Tuning: Open A (E-A-E-A-C#-E)
Also known as: 5
The A# Fifth arpeggio contains 2 notes (A#, F). Use the interactive fretboard above to explore this arpeggio on 6-string guitar — Open A with different tunings and fret ranges.
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