What is a C7 chord?

The C Seventh piano chord is often abbreviated to just “C7”, and is a four-note chord made up C, E, G and Bb. It is a frequently-used chord in pop, rock and jazz, and will often resolve to (or be followed by) a chord of F Major.

Chords related to C7

There are a number of other chords that share a similar harmonic family as the chord of C7 on piano, meaning all of these will always sounds good when played in the same chord sequence:

Chord name	Required notes
F Major	F A C
G Major	G B D
A Minor	A C E
D Minor	D F A
E Minor	E G B
Cmaj7	C E G B

List of all C chords on piano

Cmaj7Csus2C MajorC6C MinorCm7CmM7Cm6C5C9Cm9Cmaj9Csus4Cdim7Caug7

What are piano chords?

A piano chord is formed when two or more notes are played on a piano or keyboard at the same time. Click here to read our complete guide to learning how to play chords on piano now!