Explore C#9 Guitar Chord Shapes with Interactive Feedback
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The C#9 chord, C# dominant ninth, has the notes C#, E#, G#, B and D#. The E# is just F by another name, and the D# is the major ninth.
Five voicings are listed, one barre and none with open strings; the lowest starts at the 3rd fret. C#9 is the dominant chord of F# major. Learn where it sits among its relatives, such as the plain seventh and the thirteenth, in dominant chords. The C# Mixolydian scale contains all five notes.
Play a shape in front of the microphone check and see whether every fretted string sounds cleanly.
C# dominant 9th guitar chord is also written as C#9, C#dom9, C#7(9) or C#7add9.
Notes of the C# 9 chord:
Tones in the Dominant Ninth chord:
Formula: 1 3 5 b7 9
C# 9 Guitar Chord Diagrams
Position 1 Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 3 of the D string
- Place your middle finger (2) on the fret 4 of the A string
- Place your ring finger (3) on the fret 4 of the G string
- Place your pinky finger (4) on the fret 4 of the B string
Position 2 Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 8 of the A string
- Place your middle finger (2) on the fret 8 of the G string
- Place your ring finger (3) on the fret 9 of the D string
- Place your pinky finger (4) on the fret 9 of the B string
Position 3 Movable
Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 8 of the G string
- Place your middle finger (2) on the fret 9 of the D string
- Place your ring finger (3) on the fret 9 of the B string
- Place your pinky finger (4) on the fret 9 of the high E string
Position 4 Barre Movable
Finger Positions
- Mute the low E string
- Place your index finger (1) on the fret 3 of the D string
- Place your middle finger (2) on the fret 4 of the A string
- Place your ring finger (3) on the fret 4 of the G, B and high E strings at the same time
Position 5 Movable
Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 6 of the B string
- Place your middle finger (2) on the fret 8 of the G string
- Place your ring finger (3) on the fret 9 of the D string
- Place your pinky finger (4) on the fret 9 of the high E string
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FAQ
Which notes make up C#9?
C#9 contains C#, E#, G#, B and D#. The first four spell C#7, and the D# is the major ninth added on top.
What is the difference between C# dominant seventh and C#9?
C#9 keeps all of C#7 and adds the ninth, D#, a major ninth over the root. That one extra note makes the chord sound fuller and more colorful.
Is C#9 also written Db9?
Yes. Db9 uses Db, F, Ab, Cb and Eb, which are the same pitches as C#, E#, G#, B and D#. Only the spelling changes.
Which scale fits C# dominant ninth?
C# Mixolydian is C#, D#, E#, F#, G#, A# and B. Every chord note is in it, including the D# that serves as the ninth.
How many C#9 voicings can I play?
There are 5 voicings, between fret 3 and fret 9. One is a barre voicing and none uses an open string.