Guitar chords in the key of A# or Bb:
Chord Bb7sus4 (6th fret) notes: Bb, F, Ab, Eb, F and Bb.
This chord is played by placing a barre on fret six with your index finger.
Bb(A#) dominant 7th suspended 4th chord's alternative names: Bb7sus, Bb7sus4.
1(A#/Bb), 4(D#/Eb), 5(F), b7(G#/Ab).