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Abm9b5 chord

Ab Half-Diminished 9th

Abm9b5 · Piano chord

1Ab3b3Cb4b5E𝄫4b7Gb49Bb4
C3b3C4b5C51b79

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Notes

Ab – Cb – E𝄫 – Gb – Bb

Formula

1 – b3 – b5 – b7 – 9

Practice Note

The half-diminished ninth is a minor-key ii chord commonly paired with Locrian natural 2.

Try next

Abm7b5 · SimplerAbm9 · SiblingDb7b9 · Next in ii–VF#m · ii–V–i target

About Abm9b5

The Abm9b5 chord sounds distinctive, with a half-diminished 9th character. Its notes are Ab, Cb, Ebb, Gb, Bb.

All Ab chords (58)

Triads

Ab — MajorAbm — MinorAbdim — DiminishedAbaug — AugmentedAbsus2 — Suspended 2ndAbsus4 — Suspended 4thAb5 — Power Chord

7ths

Ab7 — Dominant 7thAbmaj7 — Major 7thAbm7 — Minor 7thAbdim7 — Diminished 7thAbm7b5 — Half-Diminished 7thAb6 — Major 6thAbm6 — Minor 6thAb7sus4 — Dominant 7th Sus4Ab7sus2 — Dominant 7th Sus2

Extended

Ab9 — Dominant 9thAbmaj9 — Major 9thAbm9 — Minor 9thAbadd9 — Add 9Abadd11 — Add 11Abadd2 — Add 2Abadd#11 — Add Sharp 11Ab11 — Dominant 11thAb13 — Dominant 13thAb6/9 — 6/9Abmaj13 — Major 13thAbm(add2) — Minor Add 2Abm(add9) — Minor Add 9Abm(add11) — Minor Add 11AbmMaj7 — Minor Major 7thAbm11 — Minor 11thAbm13 — Minor 13thAbm6/9 — Minor 6/9Ab7#11 — Dominant 7th Sharp 11Ab9#11 — Dominant 9th Sharp 11Ab13#11 — Dominant 13th Sharp 11Ab9sus4 — Dominant 9th Sus4Ab13sus4 — Dominant 13th Sus4Abmaj7#11 — Major 7th Sharp 11Abmaj9#11 — Major 9th Sharp 11AbmMaj9 — Minor Major 9th

Altered

Ab7#9 — Dominant 7th Sharp 9Ab7b9 — Dominant 7th Flat 9Ab7#5 — Dominant 7th Sharp 5Ab7b5 — Dominant 7th Flat 5Ab7alt — Altered DominantAb7#9#5 — Dominant 7th #9 #5Ab7b9b5 — Dominant 7th b9 b5Ab7#9b5 — Dominant 7th #9 b5Ab7sus4b9 — Dominant 7th Sus4 Flat 9Ab9#5 — Dominant 9th Sharp 5Ab9b5 — Dominant 9th Flat 5Ab13b9 — Dominant 13th Flat 9Ab7b13 — Dominant 7th Flat 13Abaug7 — Augmented 7thAbdim(maj7) — Diminished Major 7thAbaugMaj7 — Augmented Major 7th