B9 chord on 4-String Bass – Low B
in Low B (B-E-A-D) tuning
B9
Dominant 9
Notes:B · D# · F# · A · C#
Piano Left hand Right hand
Fingerings (9)
B9 shapes as text
| Shape | Frets | Fingers | Notes | Difficulty |
|---|---|---|---|---|
| 0 5 4 1 | – 3 2 1 | B A C# D# | hard | |
| 4 7 4 7 | 1 2 1 3 | D# B C# A | medium · barre on fret 4 | |
| 0 9 6 7 | – 3 1 2 | B C# D# A | medium | |
| 12 11 12 11 | 2 1 3 1 | B D# A C# | easy · barre on fret 11 | |
| 2 5 2 1 | 2 4 3 1 | C# A B D# | hard | |
| 10 9 6 9 | 4 2 1 3 | A C# D# B | hard | |
| 0 11 12 11 | – 1 2 1 | B D# A C# | easy · barre on fret 11 | |
| 0 11 0 11 | – 1 – 2 | B D# A C# | easy | |
| 12 11 0 11 | 3 1 – 2 | B D# A C# | easy |
The B9 chord (Dominant 9) is built from the notes B, D#, F#, A, C#. Below are playable fingerings for 4-String Bass – Low B generated for your selected tuning, ordered from open-position shapes up the neck. Tap a diagram to hear it, or switch to the piano view to see the same harmony on keys.
How the B9 chord is built
Formula: 1 · 3 · 5 · ♭7 · 9
| Degree | Semitones | Note |
|---|---|---|
| 1 | 0 | B |
| 3 | 4 | D# |
| 5 | 7 | F# |
| ♭7 | 10 | A |
| 9 | 14 | C# |
More B chords
Other roots
See B9 in another tuning
What notes make up the B9 chord?
B9 is a Dominant 9 chord built from the notes B, D#, F#, A, C#.
How do I read the diagram?
Strings run left to right from the lowest to the first string; the numbers show which finger presses each fret. An ○ marks an open string, an ✕ marks a muted one.