A11 Chord on Guitar
A11 = A – C# – E – G – B – D (Root, Major 3rd, Perfect 5th, Minor 7th, Major 9th, Perfect 11th)
A11 is the point where a dominant chord's stacked thirds start to genuinely strain a six-string instrument, and guitarists solve it the same way jazz pianists do — by dropping the major third entirely, since a natural eleventh sitting a half step above the third produces a harsh, muddy clash. The result, on this fifth-fret barre, is a lean voicing that looks and feels closer to a 7sus4 shape than to a fully stacked chord.
In full theory, A11 draws on A, C#, E, G, B, D — root through eleventh — but the practical guitar voicing here keeps essentially root, seventh, and eleventh, letting the fourth (D) stand in for where the third would otherwise sit. That omission is standard practice, not a shortcut: even on piano, arrangers routinely drop the third of an 11th chord for the same reason. As an extended dominant, A11 still pulls toward D major the way A9 or plain A7 does, but with a hazier, more suspended color that avoids landing squarely on major or minor.
Fingerings
Barre (5th fret)
How to Practice It
Because this voicing is so close in shape to a 7sus4, it's worth playing A7sus4 and A11 back to back to notice how similar they sound with the third removed — a useful reminder that a lot of an extended chord's flavor comes from just one or two added upper notes rather than the whole stack. Listen for the eleventh's slightly floating, unresolved character compared to a plain dominant seventh in the same spot.
Common Progressions
- A11 – D (V11 – I, a hazier resolution than plain V – I)
- Gmaj7 – A11 – D (a suspended-feeling turnaround into D major)
- A11 – A7 – D (contrasting the suspended and resolved dominant colors)
- D – A11 – D (I – V11 – I as a static vamp)
FAQ
- Why does the guitar version of A11 leave out the third?
- The natural eleventh sits only a half step above the major third, and sounding both together produces a harsh clash, so guitarists (and most other instrumentalists) simply omit the third and let the eleventh take its place in the voicing.
- Is A11 the same as A7sus4?
- They're close cousins — both typically drop the third and feature the fourth/eleventh prominently — but A11 theoretically implies the full stack up through the ninth as well, even if the guitar voicing used in practice looks nearly identical to 7sus4.
- What key does A11 pull toward?
- The same as A7 or A9 — D major — since it's still fundamentally a dominant chord built on A, just with a hazier, less sharply resolved color thanks to the missing third.
- Why is A11 less common in simple pop and folk writing?
- Its ambiguous, suspended character doesn't provide the strong major-or-minor pull that simpler songwriting often wants, so it shows up more in jazz, funk, and modal writing that's comfortable with unresolved harmonic color.
- Does the fingering for A11 change much from A7?
- It largely swaps which finger frets which string rather than adding significant new stretch, since both are lean voicings built from the same fifth-fret barre position.
- Can A11 be used as a substitute for a plain A minor sound?
- In some contexts yes, informally — without a clear major third present, A11 doesn't commit strongly to major, so a player can use it to imply ambiguity between A major and A minor territory, though it isn't a true minor chord.
- How does A11 compare to A13 in terms of density?
- A11 is actually the leaner of the two in guitar practice, since standard voicings of A13 often reintroduce the third alongside a sixth/thirteenth on top, while A11's whole identity rests on the third's absence.
Related: how chords are built, chord finder.