Piano chord
B Minor 9th Chord
Bm9 is a minor 9th chord built on B. It contains the notes B – D – F♯ – A – C♯.
Bm9
Also written: Bmin9, B-9
- B
- D
- F♯
- A
- C♯
B
D
A
F♯
C♯
Notes in Bm9
Count up from B using the intervals below. The formula shows each note relative to the B major scale.
| Notes | Intervals | Formula | Semitones |
|---|---|---|---|
| B | Root | 1 | 0 |
| D | Minor 3rd | ♭3 | 3 |
| F♯ | Perfect 5th | 5 | 7 |
| A | Minor 7th | ♭7 | 10 |
| C♯ | Major 9th | 9 | 14 |
How to play Bm9 on piano
- Split it between the hands: left hand plays B (and the 7th if there is one), right hand plays the 3rd, 5th and 9th.
- Dropping the 5th is fine — it adds little colour and frees a finger.
- Keep the 9th on top for the smoothest sound.
About minor 9th chords
A minor 7th with a major 9th: dark but silky. It is the classic sound of neo-soul, lo-fi and modal jazz, where a plain minor chord would feel too bare.
Sound: Silky & moody
Keys that contain Bm9
Bm9 is built only from notes of these keys. The Roman numeral shows its role in each key.
Hear Bm9 with different sounds and compare it with other chords in the interactive builder.
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