Chord type
Minor 9th Chords on Piano
The minor 9th chord extends the minor 7th by adding the ninth, creating a smooth, dark, and sophisticated voicing. It is the signature chord of neo-soul, lo-fi, and modern R&B, and serves as a rich ii chord in jazz progressions.
Pick a key to hear and see it below. Each key opens a full reference entry with a keyboard diagram, audio, inversions, fingerings, and notation.
Featured key
C Minor 9th Chord
Notes: C - E♭ - G - B♭ - D
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Open the full C Minor 9th Chord reference ›Formula: Root – Minor 3rd – Perfect 5th – Minor 7th – Major 9th
Scale degrees: 1–♭3–5–♭7–9
Sound: Smooth, dark, sophisticated, mellow
Symbol: m9, min9 (Cm9, Dm9)
The neo-soul sound: Dm9 → G9 → Cmaj9 (the ii–V–I with 9ths) is the foundation of modern jazz and neo-soul harmony. The ninth adds warmth to the minor 7th without changing its smooth, dark character. Erykah Badu, D'Angelo, and lo-fi producers all build on minor 9th voicings.
Minor 9th Chord in All 18 Keys
All 18 spellings, ♯ and ♭ keys listed separately.
C Minor 9th ChordNotes: C – E♭ – G – B♭ – DC♯ Minor 9th ChordNotes: C♯ – E – G♯ – B – D♯D♭ Minor 9th ChordNotes: D♭ – F♭ – A♭ – C♭ – E♭D Minor 9th ChordNotes: D – F – A – C – ED♯ Minor 9th ChordNotes: D♯ – F♯ – A♯ – C♯ – E♯E♭ Minor 9th ChordNotes: E♭ – G♭ – B♭ – D♭ – FE Minor 9th ChordNotes: E – G – B – D – F♯F Minor 9th ChordNotes: F – A♭ – C – E♭ – GF♯ Minor 9th ChordNotes: F♯ – A – C♯ – E – G♯G♭ Minor 9th ChordNotes: G♭ – B♭♭ – D♭ – F♭ – A♭G Minor 9th ChordNotes: G – B♭ – D – F – AG♯ Minor 9th ChordNotes: G♯ – B – D♯ – F♯ – A♯A♭ Minor 9th ChordNotes: A♭ – C♭ – E♭ – G♭ – B♭A Minor 9th ChordNotes: A – C – E – G – BA♯ Minor 9th ChordNotes: A♯ – C♯ – E♯ – G♯ – B♯B♭ Minor 9th ChordNotes: B♭ – D♭ – F – A♭ – CB Minor 9th ChordNotes: B – D – F♯ – A – C♯C♭ Minor 9th ChordNotes: C♭ – E♭♭ – G♭ – B♭♭ – D♭