Main major7 chord shapes

C Major 7 guitar chords

Scale intervals: 1 – 3 – 5 – 7

• Notes in the chord: C – E – G – B
• Various names: CM7 – Cmaj7 – C Major 7

In music, a major seventh chord is a seventh chord where the “third” note is a major third above the root, and the “seventh” note is a major seventh above the root (a fifth above the third note). The major seventh chord, sometimes also called a Delta chord, can be written as maj7, M7, Δ, ⑦, 7+, etc.  In the case where the seventh note is a minor seventh above the root, it is instead called a dominant seventh chord.