C Major Ninth Chord on Piano

Also known as:
C Major 9th , CM9 , Cmaj9 , CMaj9 , Cma9 , CΔ9

Here you can learn how to play C Major Ninth Chord on the Piano. The C Major Ninth Chord has a Major quality which includes a Major Third interval that produces a generally happy sound. C Major Ninth Chord contains the notes C, E, G, B, D (although G can be omitted). The C Major Ninth Chord on Piano 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 notes, notation, degrees and intervals of the C Major Ninth Chord along with any related scales and chords. In the Piano view you can display the notes of the C Major Ninth Chord mapped out onto the Piano keyboard and switch between the notes, degrees, intervals. These are shown across two octaves to help visualise the different inversions of the chord.

Notes

C, E, G, B, D

Can be omitted: G

Notation

Degrees

NoteNumberName
C1Tonic
E3Mediant
G5Dominant
B7Leading Tone
D9Supertonic

Intervals

NotesSemitonesInterval
C > C0Perfect Unison (P1)
C > E4Major 3rd (M3)
C > G7Perfect 5th (P5)
C > B11Major 7th (M7)
C > D14Major 9th (M9)
Root
Third
Fifth
Seventh
C
C
D
E
G
B
D
E
G
B
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Music Theory

Want to dig deeper and learn about the chord degrees and intervals, or see related scales and chords?

Learn more about C Major Ninth 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.

Scales related to C Major Ninth Chord

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