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Chord type

Minor 11th ♭5 Chords on Piano

The minor 11th ♭5 chord extends the half-diminished (m7♭5) chord with the 9th and 11th, creating a large, dark, and sophisticated voicing. It serves as an expanded ii chord in minor-key ii–V–i progressions and is the go-to voicing for jazz pianists who want a fuller half-diminished sound.

Each key below opens the full reference entry — keyboard diagram, audio, inversions, fingerings, and notation.

Formula: Root – Minor 3rd – Diminished 5th – Minor 7th – Major 9th – Perfect 11th

Scale degrees: 1–♭3–♭5–♭7–9–11

Sound: Dark, expansive, jazz, extended half-diminished

Symbol: m11♭5 (Cm11♭5)

The full ii chord in minor: In a Cm ii–V–i, the ii chord is Dm7♭5. Adding the 9th (E) and 11th (G) turns it into Dm11♭5, a much richer voicing that fills more harmonic space. Drop the root for the pianist and you get a Bill Evans-style left-hand voicing.

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All 18 spellings, ♯ and ♭ keys listed separately.

Minor 11th ♭5 Chord in All 18 Keys

C Minor 11th ♭5 ChordNotes: C – E♭ – G♭ – B♭ – D – F

C♯ Minor 11th ♭5 ChordNotes: C♯ – E – G – B – D♯ – F♯

D♭ Minor 11th ♭5 ChordNotes: D♭ – F♭ – A♭♭ – C♭ – E♭ – G♭

D Minor 11th ♭5 ChordNotes: D – F – A♭ – C – E – G

D♯ Minor 11th ♭5 ChordNotes: D♯ – F♯ – A – C♯ – E♯ – G♯

E♭ Minor 11th ♭5 ChordNotes: E♭ – G♭ – B♭♭ – D♭ – F – A♭

E Minor 11th ♭5 ChordNotes: E – G – B♭ – D – F♯ – A

F Minor 11th ♭5 ChordNotes: F – A♭ – C♭ – E♭ – G – B♭

F♯ Minor 11th ♭5 ChordNotes: F♯ – A – C – E – G♯ – B

G♭ Minor 11th ♭5 ChordNotes: G♭ – B♭♭ – D♭♭ – F♭ – A♭ – C♭

G Minor 11th ♭5 ChordNotes: G – B♭ – D♭ – F – A – C

G♯ Minor 11th ♭5 ChordNotes: G♯ – B – D – F♯ – A♯ – C♯

A♭ Minor 11th ♭5 ChordNotes: A♭ – C♭ – E♭♭ – G♭ – B♭ – D♭

A Minor 11th ♭5 ChordNotes: A – C – E♭ – G – B – D

A♯ Minor 11th ♭5 ChordNotes: A♯ – C♯ – E – G♯ – B♯ – D♯

B♭ Minor 11th ♭5 ChordNotes: B♭ – D♭ – F♭ – A♭ – C – E♭

B Minor 11th ♭5 ChordNotes: B – D – F – A – C♯ – E

C♭ Minor 11th ♭5 ChordNotes: C♭ – E♭♭ – G♭♭ – B♭♭ – D♭ – F♭