A half-diminished 7th flat 9th chord

Also called: A minor 7th flat 5th flat 9th
Symbols: A^ø7♭9
Am^7♭5♭9
Notes: A (root)
C (minor 3rd)
E-flat (diminished 5th)
G (minor 7th)
B-flat (minor 9th)

Bass doubling

Sustain

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	AM⁷	AM⁹	AM^9♯11	AM^13♯11	A^add9	A^add♯11	A⁶	A^6add9	A^6add♯11	A⁵	A^sus2
Ionian		AM⁷	AM⁹	AM¹¹	AM¹³		A^add11			A^6add11			A^sus4
Mixolydian		A⁷	A⁹	A¹¹	A¹³		A^add11			A^6add11				A^7sus4	A^9sus4	A^13sus4
Dorian	Am	Am⁷	Am⁹	Am¹¹	Am¹³	Am^add9	Am^add11	Am⁶	Am^6add9	Am^6add11						A^13sus4
Aeolian			Am⁹	Am¹¹	Am^11♭13	Am^add9		Am^♭6	Am^♭6add9	Am^♭6add11
Phrygian			Am^7♭9	Am^11♭9	Am^11♭9♭13	Am^add♭9		Am^♭6	Am^♭6add♭9	Am^♭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.