Our first 7th chord is the major 7th. This chord takes the very happy, upbeat sound of the major, and relaxes it a bit! You often find the major 7th chord in jazz, lounge and chillout music due the chilled out sound it creates. In this lesson, we dive into the theory behind the chord.
Whenever you are studying major type chords, the chord construction is pretty simple. In the case of a major 7th chord, you simply take your major triad (1st, 3rd, 5th) and add the 7th. It is the addition of the 7th that changes the vibe of the chord from a poppy, bouncy, happy sound to a more relaxed sounding chord. Here is the formula applied to A major:
To put this into practice on the guitar, below are two common A major 7th shapes. Notice the notes you are playing and try to call each one out in theoretical terms (i.e. the 1st, 5th etc...)