The B minor ninth chord (abbreviated Bm9 chord) is a five-note chord consisting of the notes B, D, F♯, A, and C♯. The chord is formed by adding a major ninth to the B minor seventh chord.
In practice, the fifth (F♯) is sometimes omitted from the Bm9 chord because it's not always possible to play all notes simultaneously.
Name
B minor ninth chord
Notes
BDF♯AC♯
Chord symbol
Bm9
Alternative symbols
B–9Bmi9Bmin9
Type
Pentad (five-note chord)