Dominant 11th Flat 9th Chord

🎵 A very dense and highly dissonant chord. The clashing flat 9 and 11 create significant tension, often requiring careful voicing. Primarily used in dramatic or complex harmonic contexts in jazz or modern composition for an intense, heavy, and unresolved sound.

Also abbreviated as: 11b9

With all 5 notes and C as bass, it is also: A#m6/9/CBbm6/9/C

Contains intervals: 1P5P7m9m11P