C7 Guitar Chord
C7 is a dominant seventh chord. It adds a minor seventh to a major chord, which creates tension that wants to move on to the next chord. It is everywhere in blues. Its notes are C, E, G and Bb. Below are 3 ways to play it, each with a chord diagram, tab and finger numbers.
Notes in C7
| Note | Degree | Interval |
|---|---|---|
| C | R | Root |
| E | 3 | Major 3rd |
| G | 5 | Perfect 5th |
| Bb | b7 | Minor 7th |
Formula: 1–3–5–b7
C7 chord shapes
Finger numbers: 1 index, 2 middle, 3 ring, 4 pinky. In the tab, x means don't play that string and 0 means play it open. In the diagrams the top line is the 1st (thinnest) string and the nut is on the left.
Open
Easiest- Tab (6th → 1st string)
- x 3 2 3 1 0
- Fingers
- – 3 2 4 1 –
A-shape 3fr
- Tab (6th → 1st string)
- x 3 5 3 5 3
- Fingers
- – 1 3 1 4 1
E-shape 8fr
- Tab (6th → 1st string)
- 8 10 8 9 8 8
- Fingers
- 1 3 1 2 1 1
How to play C7 (easiest shape)
Shape: Open, tab x 3 2 3 1 0 (6th to 1st string).
- 1Put your index finger (1) on the 2nd string at the 1st fret.
- 2Put your middle finger (2) on the 4th string at the 2nd fret.
- 3Put your ring finger (3) on the 5th string at the 3rd fret.
- 4Put your pinky (4) on the 3rd string at the 3rd fret.
- 5Let the 1st string ring open.
- 6Don't play the 6th string.
- 7Strum down from the 5th string to the 1st string.
C7: common questions
- What notes are in the C7 chord?
- C7 has 4 notes: C, E, G and Bb. Counted from the root, that is 1–3–5–b7.
- Is there an easier way to play C7?
- The easiest shape on this page is "Open" (x 3 2 3 1 0). It needs no barre: each finger presses just one string.
Related chords
More guitar tools
See all 231 chords in the chord library, find a scale to play over them, or tune up before you start.