Watch the 7ths online guitar lesson by Robbie Calvo from Guitar Interactives

PRINCIPLE 4 - SEVENTHS (Triads with the 7th added)

Seventh chords are created by adding the seventh above the triads we’ve already created. This is done by stacking an additional 3rd above the previous note in our triad chord. This will change the quality of the chords even further.

G - A - B - C - D - E - F# - G

Adding the seventh note to our G major chord creates a G major 7th chord.

G - A - B - C - D - E - F# - G

Adding the seventh degree to our A minor triad creates an A minor 7th.

Let’s continue adding the seventh degree to the next five existing triads.

The result is:

The resulting chords are:

I - G MAJOR 7TH = G - B - D - F#

II - A MINOR 7TH = A - C - E - G

III - B MINOR 7TH = B - D - F# - A

IV - C MAJOR 7TH = C - E - G - B

V - D7 (DOMINANT) = D - F# - A - C

VI - E MINOR 7TH = E - G - B - D

VII - F# MINOR 7 (b5) = F# - A - C - E

USE THE DIAGRAMS PROVIDED AND PLAY IN POSITION AT 3RD FRET AND ACROSS THE FRETBOARD WITH A 6TH STRING ROOT NOTE.