The C major seventh (also know as CM7, Cmaj7). Where major and minor triads have 3 different notes, 7th chords have 4.
We can construct the CM7 chord by taking a look at the C Major Scale:
We can take the 1st, 3rd, 5th notes of the scale to create the C major chord. To make a C major seventh we’ll add the 7th note as well. I’ve highlighted these notes in parentheses below:
Therefore a Cmaj7 chord would have the notes C, E, G, B (the B being the extra note).
How To Play Cmaj7 (C major seventh chord)
Here’s what a Cmaj7 chord looks like:
How Does Cmaj7 Sound?
What uses have you found with the C major seventh chord? What are your favorite songs that use this chord?