C7 chord

C7 chord for guitar in different forms, including open and barre chords.



C7 chord diagram

The most common way to play the chord. Avoid playing on the 6th string. C7 is a four-note chord consisting of C, E, G, Bb (G is sometimes omitted).

Alternative shapes

C7 barre

  • C7 barre shape

C7 barre

  • C7 barre shape


  • C7 voicing

Relevant chords


  • C7sus4 shape


  • C7#9 shape


  • B7/F# chord diagram


  • C7/G chord diagram

Theory and information


C7/E (032310) is a C dominant 7th with E in the bass and an omitted 5th. In this chord, the first string can be omitted. Concerning the pictured C7/G, the index finger should touch the 5th string slightly. It is also possible to place the thumb on the sixth string and use 332310 instead.

Try in a chord progression

Dm7 - C7 - Bb - F (see with diagrams in pdf)

Chord names

C7 is a dominant chord. C7/E, C7/G and C7/Bb are inversions of the chord.

Notes in the chord

The notes that the C7 chord consists of are C, E, G, Bb.
To get C9 add D.
To get Cmaj7 replace Bb with B.


C7 (no3) is a C dominant 7th with no third (E).
C7 (no5) is a C dominant 7th with no fifth (G).

Written in tab format (main version in open position)

- 0 -
- 1 -
- 3 -
- 2 -
- 3 -
- - -

Back to 7th chords