Minor family
C♯ minor ninth chord
C♯m9C♯ minor ninth
Piano root position
- Root
- ♭3
- 5
- ♭7
- 9
Guitar standard tuning
Fret 2
No barre: each note has its own finger.
Finger: 1 index, 2 middle, 3 ring, 4 little
Notation treble clef
Intervals
12 semitones- C♯1
- ♭2
- D♯9
- E♭3
- 3
- 4
- ♭5
- G♯5
- ♯5
- 6
- B♭7
- 7
- C♯ Root
- E Minor 3rd
- G♯ Perfect 5th
- B Minor 7th
- D♯ Major 9th
About this chord
What is a C♯ minor ninth chord?
C♯m9 is built from 5 notes: C♯ (the root), E (the ♭3), G♯ (the 5), B (the ♭7), D♯ (the 9). The minor seventh with a ninth: deep, soft and modern.
- Notes
- C♯ · E · G♯ · B · D♯
- Formula
- 1 · ♭3 · 5 · ♭7 · 9
- Also written
- C♯min9 · C♯-9
- Found in
- Outside the major and minor keys
Scales that contain C♯m9
Neighbours
Chords close to C♯m9
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All 348 chords
Every chord type on every root, each with its own page.
C
D♭
D
E♭
E
F
G♭
G
A♭
A
B♭