A# or B♭ Sus2
1st Fret · A-Shape BarreMoveable A-shape sus2 rooted on A# at fret 1 — index barres fret 1 from the A string up, ring and pinky add C and F at fret 3. Mute the low E. Fully moveable to any root.
A# or B♭ Sus2
Top-Four-String VoicingA compact voicing on the top four strings around fret 8–11 — root A# on the D string at fret 8, F on the G string at fret 10, A# on the B string at fret 11, C on the high e at fret 8. Mute the low E and A.
Spell it as B♭sus2
This chord is far more often written B♭sus2 than A#sus2. The shapes and sound are identical — only the name changes with the key.
The 2nd is written as B#
A whole step above A# is technically B#, which sounds the same as C. The diagram shows it as C so it is easy to read on the fretboard.
No open strings
A#sus2 has no open-string voicing in standard tuning, so both shapes are fretted. The A-shape barre at fret 1 is the most dependable.
Use it as a moveable shape
The x-1-3-3-1-1 barre is fully moveable — slide it up a fret for Bsus2 or up three for C#sus2.
Resolve to the major chord
A#sus2 (B♭sus2) wants to fall back to its major chord. Practising the move trains your ear to hear the suspension release.
About the A#sus2 Chord on Guitar
The A#sus2 chord is built from three notes: A# (the root), C — the B# major 2nd — and F (the perfect 5th). It is an A# major triad with the 3rd suspended, so it sounds open and neutral rather than clearly major. Because none of its notes match open guitar strings, every A#sus2 voicing is fretted. A#sus2 is enharmonically identical to B♭sus2 — same pitch, same shapes — and the B♭sus2 spelling is by far the more common in real music. This page covers two voicings: a low moveable A-shape barre and a top-four-string form. Every diagram is interactive and playable with acoustic guitar sound.
- 012 A#sus2 or B♭sus2 chord shapes
- 02Interactive diagrams — click Play to hear each chord
- 03Acoustic guitar sound via audio engine
- 04Moveable A-shape barre and a top-four-string voicing
- 05Difficulty rating on every shape
- 06Free — no sign-up or download needed
ANATOMY
Chord Tones
The 3 notes that form the A# or B♭ Sus2 chord and their role in the major scale.
Every major chord follows this same formula — root, major third, perfect fifth.