Suspended & power

B♭ dominant 7th suspended 4th chord

A dominant 7th with a suspended 4th — common in funk, soul and gospel.

Spell as A♯7sus4

How to play B♭7sus4

x11141 · Barre · 1st fret

Right hand: B♭ (1), E♭ (2), F (3), A♭ (5)

1311 · 1st fret

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

On piano, B♭7sus4 has three black keys (B♭, E♭ and A♭) and one white key.

On ukulele the usual B♭7sus4 shape is 1311, using four fingers.

Move a single note and B♭7sus4 becomes a different chord: lower E♭ to D for B♭7, swap E♭ for D♭ for B♭m7 and drop the A♭ for B♭sus4.