C#maj9 guitar chord
The standard grips this chord is usually shown with.
- Tap a note to hear it
- Arrows change position
- Fingers, notes or intervals
- Play the chord
About C#maj9 — root position
C#maj9 is C#, E#, G#, B# and D# — C#maj7 with the ninth stacked above it.
It sounds a maj7 with more air in it. The ninth argues with nothing here, so it works anywhere a maj7 does.
C#maj9 notes and formula
| C# | E# | G# | B# | D# |
|---|---|---|---|---|
| 1 | 3 | 5 | 7 | 9 |
Tonic — an extended resting chord.
Also written C#M9, C#Δ9, C#ma9 or C# major 9. The same chord either way; which spelling you meet depends on who wrote the chart.
How to play C#maj9
C#maj9 in root position puts C# in the bass, which is the chord as it is spelled: the note it is named after underneath everything else.
6 of C#maj9’s 11 common shapes do this: x41111, x4354x, 966668, 9-8-10-8-9-8, 9-11-10-10-9-11, x-x-11-10-13-11.
Start with x4354x — no barre and low, at the 3rd fret. None of the shapes for C#maj9 uses an open string, so every one of them is movable; the lowest sits at the 1st fret. 6 of the 11 need a barre. Together they cover the neck from the 1st fret to the 13th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| x41111 | 1st fret | C#, root position | E# | barred |
| x4354x | 3rd fret | C#, root position | D# | all fretted |
| 44354x | 3rd fret | G#, 2nd inversion | D# | barred |
| x66668 | 6th fret | D#, 9th in the bass | B# | barred |
| xx6868 | 6th fret | G#, 2nd inversion | B# | all fretted |
| 966668 | 6th fret | C#, root position | B# | barred |
| 9-8-10-8-9-8 | 8th fret | C#, root position | B# | barred |
| 9-11-10-10-9-11 | 9th fret | C#, root position | D# | all fretted |
| x-x-10-10-9-11 | 9th fret | B#, 3rd inversion | D# | all fretted |
| x-x-11-10-13-11 | 10th fret | C#, root position | D# | all fretted |
| 13-11-11-13-13-11 | 11th fret | E#, 1st inversion | D# | barred |
The same notes rebuilt from scratch give 3 shell, 12 drop 2, 8 drop 3 and 13 rootless voicings, each on its own page.
Tensions. A shell of C#maj9, root, third and seventh, leaves a string free, and the tones that belong over it are the #11 (F##) and the 13 (A#).
How to use C#maj9
How you get to it. The turn that lands on C#maj9 is D#m7 to G#7 — the ii and the V of C# — and G#7 shares its third and seventh with D#m7, so the hand barely moves between them.
In which keys. Every note of C#maj9 belongs to C# major (the I, the tonic), F minor (the ♭VI), Ab major (the IV, the subdominant) and Bb minor (the ♭III).
What to play over C#maj9
Every note of C#maj9 is in C# major and C# lydian.
Chords near C#maj9
Change one note of C#maj9 and you have C#maj7 (drop the ninth), C#maj11 (add the fourth), C#maj13 (add the sixth), C#mMaj9 (the major third becomes a minor third), C#add9 (drop the major seventh) or C#69 (the major seventh becomes a sixth).
C#maj9 is a major chord — root, major third, fifth. Major chords on every root.
On C#maj9’s sound and use this page follows Mark Levine, The Jazz Theory Book (Sher Music, 1995). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.