Chord & FretA#7sus4 — dominant seventh suspended fourth
Also written Bb7sus4 — the same chord, spelled the other way.
Notes in A#7sus4: A# – D# – E# – G#Formula: 1 – 4 – 5 – b7In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.
The dominant with the fourth in place of the third. The seventh keeps the tension, but without the third the pull toward resolution loosens — the chord can afford to wait.
The same chord on all four instruments
Where to use it: Right before the plain dominant (C7sus4 → C7C7C7C7), in gospel, soul, MPB and rock.
This is just one shape of A#7sus4. In Chord & Fret, you hear every shape strummed string by string, in each instrument's own voice; compare positions with their difficulty marked; and set a capo — the diagrams redraw above it. Start free. Unlock everything with Pro. Plays offline.
See the whole neck in Chord & Fret →Part of the Suspended family.