C9 Guitar Chord
C9 Guitar Chord and alternate tunings. 7 chord voicings, charts and sounds. Chord notes and structure: C E G Bb D (R 3 5 m7 9).
C9 Chord
Full name: C ninthAKA: C7(add9) C7/9
Guitar sound:
On this page:
ChartsInversionsLeft handed chartsStructureRelated chordsChord on other instrumentsRelated scalesChord staffSummary tableReferencesAdjust notes
C9 Guitar Chord Charts
Simplified notation: x 3 2 3 3 3
Difficulty level: Intermediate


Simplified notation: x x 10 9 11 10
Difficulty level: Advanced


Simplified notation: 8 x 8 7 5 x
Difficulty level: Professional


Simplified notation: 8 10 8 9 8 10
Difficulty level: Professional


Simplified notation: x 3 2 3 3 0


Simplified notation: 8 7 8 7 x 8


Simplified notation: 8 5 5 5 5 6


C9 Inversions on guitar
C9 chord charts for left handed guitar







C9 Chord Structure
Notes: C E G Bb DInterval structure: R 3 5 m7 9
Chord construction:
R = C
C + major interval = E (scale degree = 3rd)
E + minor interval = G (scale degree = 5th)
G + minor interval = Bb (scale degree = minor 7th)
Bb + major interval = D (scale degree = 9th)
Chords related to C9
C9\G ;C9 on other instruments
C9 piano




Change tuning
Scales Related to C9
Scales that include all of the notes of C9.F major F melodic minor G melodic minor F ionian D natural minor G dorian A phrygian A#/Bb lydian C mixolydian D aeolian E locrian G#/Ab leading whole tone C overtone A#/Bb overtone E altered F#/Gb altered F#/Gb enigmatic C#/Db dorian b2 B dorian b2 G#/Ab augmented lydian
C9 chord staff

C9 summary table
Guitar chord name | C9 (C ninth) |
Guitar sound | |
Notes and structure | C E G Bb D (R 3 5 m7 9) |
Alternate tunings | |
Related Chords | C9\G ; |
Chord Categories | is 7 (dom7) with added 9th 9th chord |
Other Notations | C7(add9) C7/9 |
Chord Construction | R = C C + major interval = E (scale degree = 3rd) E + minor interval = G (scale degree = 5th) G + minor interval = Bb (scale degree = minor 7th) Bb + major interval = D (scale degree = 9th) |
C9 on other instruments | C9 piano![]() ![]() ![]() ![]() ![]() |
Tweak notes of C9
G |
D |
A# |
E |
C |
X | |||||||||||||
X | |||||||||||||
X | |||||||||||||
X | |||||||||||||
X | |||||||||||||
X |
References related to this chord
is 7 (dom7) with added 9th 9th chordNinth Chords on Wikipedia
Major Seventh Chords on Wikipedia