Dominant 7th Flat 5 Flat 9th Chord

🎵 A highly dissonant altered dominant combining the flat 5 and flat 9. This creates intense friction, particularly with the root and 3rd. Primarily used in jazz for complex harmonic movement and creating maximum suspense before a resolution, often to a minor chord. Produces a dark, intense, and unresolved quality.

Also abbreviated as: 7b9#117b5b97b9b5

With all 6 notes and C as bass, it is also: C7b9#11F#7b9#11/CGb7b9#11/C