The D♭ 7♭9♯11 chord is a six-note chord made up of D♭, F, A♭, C♭, E♭♭, and G. It is built from a root, major third, perfect fifth, minor seventh, minor ninth, and augmented eleventh.
Construction
D♭ 7♭9♯11 = Root + Major 3rd + Perfect 5th + Minor 7th + Minor 2nd + Diminished 5th = D♭ · F · A♭ · C♭ · E♭♭ · G
| Note | Interval | Degree |
|---|---|---|
| D♭ | Root | 1 |
| F | Major 3rd | 3 |
| A♭ | Perfect 5th | 5 |
| C♭ | Minor 7th | ♭7 |
| E♭♭ | Minor 2nd | ♭9 |
| G | Diminished 5th | ♭5 |
Key Signature
A chord has no key signature of its own, but the D♭ 7♭9♯11 is the tonic (I) chord of Db Major, whose key signature has 5 flats (B♭, E♭, A♭, D♭, G♭).
B♭E♭A♭D♭G♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of D♭ Major
These are the triads built on each degree of the D♭ major scale:
Same Notes, Other Names
The notes D♭ – F – A♭ – C♭ – E♭♭ – G aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:
D♭ 7♭9♯11 — Frequently Asked Questions
What is the D♭ 7♭9♯11 chord on piano?
The D♭ 7♭9♯11 chord contains the notes D♭ – F – A♭ – C♭ – E♭♭ – G. On piano, play these notes together to sound the chord.
What notes are in the Db 7♭9♯11 chord?
The Db 7♭9♯11 chord (Db7♭9♯11) contains 6 notes: Db, F, Ab, B, D, G. Formula: R-M3-P5-m7-m9-A11.
How is Db7♭9♯11 used in music?
Db7♭9♯11 is used in jazz, fusion, and contemporary music to add harmonic color. It appears as a dominant or tonic chord depending on context.
What is the scale degree formula for Db7♭9♯11?
Db7♭9♯11 uses scale degrees 1-3-5-b7-b9-#11, giving it its distinctive sound.