A♯ dominant 7th suspended 4th chord

Playing it

There’s no open-string way to play A♯7sus4 on guitar with the root in the bass, so the standard shape is a barre across the 1st fret (x11141).

On piano, A♯7sus4 has three black keys (A♯, D♯ and G♯) and one white key.

On ukulele the usual A♯7sus4 shape is 1311, using four fingers.

Related chords

Move a single note and A♯7sus4 becomes a different chord: lower D♯ to C𝄪 for A♯7, swap D♯ for C♯ for A♯m7 and drop the G♯ for A♯sus4.

Where you’ll hear it

Notice the E♯ in A♯7sus4 (A♯ D♯ E♯ G♯): each note of the chord takes its own letter (A–D–E–G), so the perfect 5th has to be written E♯ rather than F — the same key on a piano, spelled to fit the chord.