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C7♭9 chord

C Dominant 7th Flat 9

C7b9 · Root

1C43E45G4b7Bb4b9Db5
1C435C5C6b7b9

Every chord tone stacked from the root up.

Click keys to experiment with the chord

Notes

C – E – G – B♭ – D♭

Formula

1 – 3 – 5 – b7 – b9

Practice Note

A flat ninth gives the dominant a strong pull, especially as V7 in a minor key, where Phrygian dominant or the altered scale are common choices. The half-whole diminished scale suits resolutions to major; b9 and the guide tones resolve into the following chord.

Try next

C7 · SimplerC13b9 · RicherC7#9 · SiblingFm · Resolves toGm7b5 · ii in minorDbdim7 · Same notes (upper)

About C7b9

The C7b9 chord sounds dark and dramatic, a staple of minor-key resolutions. Its notes are C, E, G, Bb, Db.

All C chords (61)

Triads

C — MajorCm — MinorCdim — DiminishedCaug — AugmentedCsus2 — Suspended 2ndCsus4 — Suspended 4thC5 — Power Chord

7ths

C7 — Dominant 7thCmaj7 — Major 7thCm7 — Minor 7thCm7#5 — Minor 7th Sharp 5Cdim7 — Diminished 7thCm7b5 — Half-Diminished 7thC6 — Major 6thCm6 — Minor 6thC7sus4 — Dominant 7th Sus4C7sus2 — Dominant 7th Sus2

Extended

C9 — Dominant 9thCmaj9 — Major 9thCm9 — Minor 9thCadd9 — Add 9Cadd11 — Add 11Cadd2 — Add 2Cadd#11 — Add Sharp 11C11 — Dominant 11thC13 — Dominant 13thC6/9 — 6/9Cmaj13 — Major 13thCm(add2) — Minor Add 2Cm(add9) — Minor Add 9Cm(add11) — Minor Add 11CmMaj7 — Minor Major 7thCm11 — Minor 11thCm13 — Minor 13thCm6/9 — Minor 6/9C7#11 — Dominant 7th Sharp 11C9#11 — Dominant 9th Sharp 11C13#11 — Dominant 13th Sharp 11C9sus4 — Dominant 9th Sus4C13sus4 — Dominant 13th Sus4Cmaj7#11 — Major 7th Sharp 11Cmaj9#11 — Major 9th Sharp 11CmMaj9 — Minor Major 9thCm9b5 — Half-Diminished 9th

Altered

C7#9 — Dominant 7th Sharp 9C7b9#9 — Dominant 7th Flat 9 Sharp 9C13#9 — Dominant 13th Sharp 9C7#5 — Dominant 7th Sharp 5C7b5 — Dominant 7th Flat 5C7alt — Altered DominantC7#9#5 — Dominant 7th #9 #5C7b9b5 — Dominant 7th b9 b5C7#9b5 — Dominant 7th #9 b5C7sus4b9 — Dominant 7th Sus4 Flat 9C9#5 — Dominant 9th Sharp 5C9b5 — Dominant 9th Flat 5C13b9 — Dominant 13th Flat 9C7b13 — Dominant 7th Flat 13Caug7 — Augmented 7thCdim(maj7) — Diminished Major 7thCaugMaj7 — Augmented Major 7th