C major 7th chord

Cmaj7 chord for piano with keyboard diagram.
Explanation: The C major seventh is a four-note chord. You can see the four notes of the C major seventh chord marked in red color. The chord is often abbreviated as Cmaj7.
Theory: The C major seventh chord is constructed with a root, a major third, a perfect fifth and a major seventh.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).

Cmaj7

Notes: C - E - G - B
Left hand: 5-3-2-1
Right hand: 1-2-3-5

Cmaj7 - inversions

Explanation: The piano chords pictured below are the three inversions of Cmaj7. Cmaj7/E is a C major seventh with E as the bass note, Cmaj7/G is a C major seventh with G as the bass note and Cmaj7/B is a C major seventh with B as the bass note.

Cmaj7/E

1st inversion

Cmaj7/G

2nd inversion

Cmaj7/B

3rd inversion