C 7th chord

C7 chord for piano with keyboard diagram.
Explanation: The C seventh is a dominant four-note chord. You can see the four notes of the C seventh chord marked in red color. The chord is often abbreviated as C7.
Omissions: C7(no3): C - G - Bb; C7(no5): C - E - Bb.
Theory: The C seventh chord is constructed with a root, a major thirdAn interval consisting of four semitones, a perfect fifthAn interval consisting of seven semitones and a minor seventhAn interval consisting of ten semitones and the 7th scale degree.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).


C7 chord diagram with marked notes C - E - G - Bb
Notes: C - E - G - Bb
Left hand: 5-3-2-1
Right hand: 1-2-3-5

B7 chord ‹ Previous • Next › C#7 chord

+  Show inversions: C7/E, C7/G, C7/Bb -  Hide inversions

C7 - inversions

Explanation: The images below show the three inversions of the C dominant seventh chord. C7/E is a C dominant seventh with E as the bass note, C7/G is a C dominant seventh with G as the bass note and C7/Bb is a C dominant seventh with Bb as the bass note.


C7/E chord diagram
1st inversion


C7/G chord diagram
2nd inversion


C7/Bb chord diagram
3rd inversion

See also C7 chords with alternative bass notes ›

C chord categories

C Cm C7 Cm7 Cmaj7 CmM7 C6 Cm6 C6/9 C5 C9 Cm9 Cmaj9 C11 Cm11 Cmaj11 C13 Cm13 Cmaj13 Cadd C7-5 C7+5 Csus Cdim Cdim7 Cm7b5 Caug Caug7