A-double-flat half-diminished 11th flat 9th chord

Also called: A-double-flat minor 11th flat 5th flat 9th
Symbols: A𝄫^ø11♭9
A𝄫m^11♭5♭9
Notes: A-double-flat (root)
C-double-flat (minor 3rd)
E-triple-flat (diminished 5th)
G-double-flat (minor 7th)
B-triple-flat (minor 9th)
D-double-flat (perfect 11th)

Bass doubling

Sustain

This is a partial, close, root-position voicing (omitting the 9th).
This is the full, close, root-position voicing.
This is a full, open, root-position voicing.

Type

Root

Chords built on the tonic of the diatonic modes

Lydian	A𝄫	A𝄫M⁷	A𝄫M⁹	A𝄫M^9♯11	A𝄫M^13♯11	A𝄫^add9	A𝄫^add♯11	A𝄫⁶	A𝄫^6add9	A𝄫^6add♯11	A𝄫⁵	A𝄫^sus2
Ionian		A𝄫M⁷	A𝄫M⁹	A𝄫M¹¹	A𝄫M¹³		A𝄫^add11			A𝄫^6add11			A𝄫^sus4
Mixolydian		A𝄫⁷	A𝄫⁹	A𝄫¹¹	A𝄫¹³		A𝄫^add11			A𝄫^6add11				A𝄫^7sus4	A𝄫^9sus4	A𝄫^13sus4
Dorian	A𝄫m	A𝄫m⁷	A𝄫m⁹	A𝄫m¹¹	A𝄫m¹³	A𝄫m^add9	A𝄫m^add11	A𝄫m⁶	A𝄫m^6add9	A𝄫m^6add11						A𝄫^13sus4
Aeolian			A𝄫m⁹	A𝄫m¹¹	A𝄫m^11♭13	A𝄫m^add9		A𝄫m^♭6	A𝄫m^♭6add9	A𝄫m^♭6add11
Phrygian			A𝄫m^7♭9	A𝄫m^11♭9	A𝄫m^11♭9♭13	A𝄫m^add♭9		A𝄫m^♭6	A𝄫m^♭6add♭9	A𝄫m^♭6add11
Locrian	A𝄫^o	A𝄫^ø7	A𝄫^ø7♭9	A𝄫^ø11♭9	A𝄫^{ø11♭9♭13}

Mode

Tonic

Chords built on each degree of the mode

Please note: This app doesn’t include every chord, nor every name, symbol, or voicing of the included chords.