Guitar chords in the key of A# or Bb:
Chord Bbmaj9 (5th fret) notes: Bb, D, A, C and F. You should not play the 1st string.
This chord is played by placing a barre on fret five with your index finger.
Bb(A#) major 9th guitar chord's alternative names: Bbmaj9, BbM9, Bbmaj7(9).
1(A#/Bb), 3(D), 5(F), 7(A), 9(C).