B♭ Dominant 9th
B♭9
Notes
B♭ · D · F · A♭ · C
Intervals
- RootB♭ (1P)
- Major 3rdD (3M)
- Perfect 5thF (5P)
- Minor 7thA♭ (7m)
- Major 9thC (9M)
Fretboard
Adjust labels, frets, and palette in the interactive view.
Voicings & shapes
Rootless voicings (A / B form) (4)
About
The B♭9 dominant ninth (B♭–D–F–A♭–C) extends a dominant 7 with a ninth. The C adds brightness and harmonic richness without affecting the chord’s dominant function — the tritone between D and A♭ is still present and still drives resolution to E♭. The 3rd and ♭7 remain essential; the 5th is routinely dropped on guitar to make room for the 9th without creating a muddy cluster. Common in funk, jazz, and blues as a more colorful version of the dominant 7. Compared to B♭7, the 9th adds shimmer and modernity; the resolution tendency is identical.
Chord diagrams
Bb Dominant 9th voicing charts — tap a sheet to open it full size to save or print.
Similar chords
Chords sharing two or more notes with this one, ranked by overlap.
Scales containing this chord
- B♭ Mixolydian (I)
- A♭ Lydian (II)
- C Natural Minor (VII)
- D Locrian (VI)
- E♭ Major (V)
- E♭ Melodic Minor (V)
- F Dorian (IV)
- F Melodic Minor (IV)
- G Phrygian (III)
Scales whose notes include every chord tone. The Roman numeral (or scale degree) marks the chord root’s position in the scale.