C dominant seventh chord

C7 chord for piano with keyboard diagram.
Explanation: The C dominant seventh is a 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.
Theory: The C seventh chord is constructed with a root, a major third, a perfect fifth and a minor seventh.
Fingerings: little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).

C7

C7 chord diagram
Notes: C - E - G - Bb

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

C7/E chord diagram
1st inversion

C7/G

C7/G chord diagram
2nd inversion

C7/Bb

C7/Bb chord diagram
3rd inversion

C chord categories

C Cm C7 Cm7 Cmaj7 C6 Cm6 C6/9 C5 C9 Cm9 Cmaj9 C11 C13 Cadd C7-5 C7+5 Csus Cdim Caug