About the E flat seven flat nine chord
E flat seven flat nine sits outside the plain diatonic set, so it is borrowed to add color and tension. Think of it as an E♭ dominant seventh flat nine chord.
Its notes are E♭, G, B♭, D♭, and F♭. The intervals are a major third, a perfect fifth, a minor seventh, and a minor ninth.
Also called 7-9. D sharp seven flat nine spells the same notes enharmonically.
Inversions
E flat seven flat nine (root position)
Notes and intervals
| 1 | EbE♭ | Root |
|---|---|---|
| 2 | GG | Major 3rd |
| 3 | BbB♭ | Perfect 5th |
| 4 | DbD♭ | Minor 7th |
| 5 | FbF♭ | Minor 9th |
Shapes
Chromatic
Circle of Fifths
Other E flat chords
Simpler triads
Suspended
Sixths and sevenths
Extensions
Altered
Functional relationships
These chords are where this one most naturally comes from and resolves to inside a key.
Relative minor
The relative minor uses the same notes and key signature, so it works as a calmer, darker home base.
Parallel minor
The parallel minor keeps the same root note but lowers the third, giving the same key a darker, sadder sound.
Dominant
The dominant is a fifth above the root, and it builds tension that pulls strongly back to this chord.
Subdominant
The subdominant is a fourth above the root (a fifth below), and it usually leads on to the dominant or back home.
Tritone substitution
The tritone substitution is a dominant chord a tritone away that shares the same tension, so it can stand in for this chord and resolve the same way.