C major seventh piano chord - Cmaj7

The C major seventh chord is a 4-note chord consisting of the notes C, E, G and B.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Cmaj7.

Interactive piano diagram for the C major seventh chord

Piano keyboard displaying the C major seventh chord with the notes B# C Fb E G Cb B

Extended Chords

Chords that are a superset of Cmaj7. The chords include more notes but always C, E, G and B.

Reduced chords

Chords that are a subset of Cmaj7. These contain less notes but all of them are included in Cmaj7.

C major seventh piano chord chart image

In case you prefer a non-interactive variant of the chord chart, we've embedded a PNG image below that shows the notes for the the Cmaj7 chord. Feel free to save or share the image as needed.

Piano chord chart for the C major seventh chord (Cmaj7). The notes C, E, G and B are highlighted.