A
Aaug7
Notes
A · C# · E# · G
Intervals
- RootA (1P)
- Major 3rdC# (3M)
- Augmented 5thE# (5A)
- Minor 7thG (7m)
Fretboard
On the fretboard, F represents E#.
Adjust labels, frets, and palette in the interactive view.
About
The Aaug7 (A–C♯–E♯–G) raises the fifth, replacing the perfect fifth with an augmented fifth. The E♯ adds a floating, upward-pulling quality to the dominant sound — unlike the inward pull of the ♭5, the ♯5 creates outward tension that resolves naturally when the chord moves to a tonic; here the natural target is D. The 3rd, ♭7, and ♯5 are all essential; the ♯5 is what distinguishes this from a plain A7. Common in jazz and blues as a voice-leading tool — the ♯5 often resolves up to the third of the tonic chord. Compared to A7♭5, aug7 feels more expansive and less claustrophobic.
Similar chords
Chords sharing two or more notes with this one, ranked by overlap.
Scales containing this chord
- A Whole Tone (deg 1)
- B Whole Tone (deg 6)
- B♭ Melodic Minor (VII)
- D Harmonic Minor (V)
- D Melodic Minor (V)
- D♭ Whole Tone (deg 5)
- E♭ Whole Tone (deg 4)
- F Whole Tone (deg 3)
- G Whole Tone (deg 2)
Scales whose notes include every chord tone. Roman numeral marks the chord root’s position in the scale; dashed badges aren’t linked yet.