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Chord and Fret

Cmaj9 — major ninth

Notes in Cmaj9: C – E – G – B – DFormula: 1 – 3 – 5 – 7 – 9

In the formula, the numbers count steps of the major scale starting from the note that names the chord; "b" lowers a half step, "#" raises one — and a slash names the bass note.

The maj9 is the maj7 with the ninth added. It widens the triad without losing its restful character, with a romantic sheen.

The same chord on all four instruments

Cmaj9, x 3 0 0 0 0Cmaj91×CDGBE
Guitar
Cmaj9, x 3 0 0 0 0Cmaj91×CDGBE
Electric guitar
Cmaj9, 2 5 0 0Cmaj912ECBD
Cavaquinho
Cmaj9, 4 0 0 5Cmaj912BCED
Ukulele

Where to use it: Ballads, bossa nova and neo-soul love this chord to open or close a song. It is the natural pick when a plain maj7 feels too plain — the ninth adds an extra glow without disturbing the rest.

Every region of the neck hides more shapes of Cmaj9. In Chord and Fret, you check it note by note, playing any shape as an arpeggio; compare positions with their difficulty marked; and set a capo — the diagrams redraw above it. Start free. Unlock everything with Pro. Plays offline.

See the whole neck in Chord and Fret →

Part of the Extended family.

Other chords in this family

C9Cm9Cm11C13Cmaj9(#11)C11Cmaj11Cmaj13Cm13Cm(maj9)

See all chord types and qualities →