C Minor Ninth Chord

Also known as:
C Minor 9th , Cm9 , Cmin9 , Cmi9 , C−9

The Minor Ninth Chord has a minor quality which includes a minor Third interval that produces a generally sad sound. Minor Ninth Chord contains the notes C, E, G, B, D. The Minor Ninth Chord is an Extended type chord which means it includes a Triad (the Root C, the Third E, and the Fifth G), the Seventh B, and also includes the Ninth (Second) D from the octave above.

Below you will find the Minor Ninth Chord notes, notation, degrees, intervals, related scales and chords, and more.

Notes

C, E, G, B, D

Can be omitted: G

Notation

Degrees

NoteNumberName
C1Tonic
E3Mediant
G5Dominant
B7Subtonic
D9Supertonic

Intervals

NotesSemitonesInterval
C > C0Perfect Unison (P1)
C > E3minor 3rd (m3)
C > G7Perfect 5th (P5)
C > B10minor 7th (m7)
C > D14Major 9th (M9)

Scales related to C Minor Ninth Chord

Chords related to C Minor Ninth Chord

Enharmonic Equivalent

Chord with the same root and notes as the C Minor Ninth Chord but different spelling.

B♯ Minor Ninth Chord

Same Notes

Chords that have all of the same notes (in any spelling) as the C Minor Ninth Chord.

B♯ Minor Ninth Chord

Same Root Note

Chords that include the same notes (in any spelling) as the C Minor Ninth Chord and have the same root note.

C Minor Eleventh Chord

C Minor Thirteenth Chord

If you want to learn what chords are and much more, check out our free Fundamentals of Music Theory course. If you already know some of the basics, you can jump straight into the chords lesson.

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