A phrase in C minor
- Cm
- B♭9
- G7
- Cm
Hear B♭9 in a tonic–chord–dominant–tonic phrase. Its role depends on its position, not just its quality.
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Selected:B♭3D4F4A♭4C5
- Root
- 3rd / sus
- 5th
- 7th
- 6th / extensions
B♭9
B♭ dominant ninth
A dominant seventh chord with a major ninth on top.
- Chord tones
- B♭1 · RootD3 · 3rdF5 · 5thA♭♭7 · 7thC9 · Ext
- Formula
- 1–3–5–♭7–9
- Root / bass
- B♭ / B♭
- Notes played (low → high)
- B♭3 · D4 · F4 · A♭4 · C5
B♭9 · dominant ninth
How to Use This Chord
Sound & role
Adds colour to a triad; its key and surrounding chords determine its harmonic role.
Genre examples
Jazz
Soul
Pop
Examples of musical settings, not restrictions or claims about how often this chord appears.
Connection & passing potential
No specific chromatic passing use is established by these notes alone. A passing function requires a starting chord, a destination and voice movement.
Diatonic context · example keys
Every chord tone fits these example keys. Other keys may also fit; the chord root is not assumed to be the tonic.
C minor · VII9
natural minor
E♭ major · V9
major