A#sus2 Chord on Guitar
A#sus2 = A# – C – F (Root, Major 2nd, Perfect 5th)
A#sus2 pulls the third out of the plain sixth-fret major barre and replaces it with a major second, leaving behind one of the more open, unresolved-sounding shapes in the whole A#-rooted family. Removing a note rather than adding one is what defines every suspended chord, and this one is no exception.
A#, C, F make up the chord — root, second, fifth, with no third present at all. Without that third, the ear has no way to tell whether the chord wants to be major or minor, which is exactly the hollow, wide-open quality guitarists reach for in folk and alternative textures that favor ringing intervals over a fully settled triad. A#sus2 works equally well as a brief passing color en route to plain A#/Bb major or as a deliberately unresolved chord left hanging at the end of a phrase.
Fingerings
Barre (6th fret)
How to Practice It
Play A#sus2 directly into A#/Bb major and listen for the moment the ear fills in the missing third — that's the suspension resolving in real time. Because this shape omits a note instead of adding one, it can feel like a small rest position within a song that otherwise moves through fuller-sounding barre chords.
Common Progressions
- A#sus2 – A# (a direct suspension-to-resolution move)
- Eb – A#sus2 – A# – Eb (IV – Vsus2 – V – IV)
- A#sus2 – D#sus2 – A# (using two suspended chords back to back)
- F – A#sus2 – Cm (V – Isus2 – vi in A# major)
FAQ
- What makes A#sus2 different from plain A# major?
- The third (D) is removed and replaced with the second (C), so the chord loses its major-or-minor identity and takes on a more open, unresolved sound.
- Why do guitarists reach for sus2 chords in open, strummed textures?
- The missing third leaves extra ringing space in the chord, which suits arrangements that want an airy, spacious sound rather than the tighter, more settled color of a full triad.
- Does A#sus2 have to resolve to A# major?
- Not necessarily — it works fine as a standalone color, particularly in modern rock and alternative writing, though the classic use is as a brief suspension right before the full triad lands.
- Is A#sus2 easier to play than plain A#/Bb major?
- Generally about the same or a touch easier, since it's the identical barre position with a note omitted rather than added.
- How does A#sus2 compare to A#sus4?
- Both remove the third, but sus2 replaces it with the note below where the third would sit while sus4 replaces it with the note above, giving each a distinctly different flavor despite the shared open quality.
- Can A#sus2 stand in for A# add9?
- No — A#sus2 leaves the third out entirely, while A# add9 keeps the third and adds the ninth on top, so add9 still sounds clearly major while sus2 doesn't commit either way.
- Why does removing the third make a chord sound 'open'?
- The third is the interval that sits closest to its neighbors in a triad, and without it the remaining notes are spaced more widely, which is exactly why sus2 and sus4 chords are often described as airier than the triads they're drawn from.
- Can A#sus2 be played using an A-shape barre lower on the neck?
- Yes, near the first fret, giving the identical open, third-less color in a position many guitarists find gentler on the hand than the sixth-fret E-shape.
- Does A#sus2 ever function as a standalone chord rather than a passing tone?
- In ambient and modern rock textures, yes — some songs sit on a sus2 chord for extended stretches specifically because its ambiguity fits a mood the songwriter wants to sustain rather than resolve.
- What happens tonally if A#sus2 is strummed with heavy distortion?
- The open interval created by the missing third tends to sound especially wide and slightly dissonant under distortion, which is part of why alternative and post-rock guitarists reach for sus2 voicings when they want size without full harmonic clarity.
- Could a bassist fill in the missing third while a guitarist plays A#sus2?
- Occasionally, in more layered arrangements — a bass or second guitar quietly holding the third underneath the sus2 shape creates a fuller composite chord than either instrument produces alone.
- Is sus2 more of an acoustic or electric guitar chord?
- It's a favorite on acoustic guitar for open, ringing strumming, though it turns up plenty on clean electric tones in alternative and indie rock as well.
A#sus2 on other instruments: A#sus2 on Piano, A#sus2 on Ukulele. Related: how chords are built, chord finder.