Dominant Seventh Chords ----------------------- The formula for dominant seventh chords is 1, 3, 5, b7. Also referred to as simply 'seventh' chords. C7, C form C7, A form C7, G form C7, E form C7, D form =========== +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | | | 1 | -1 1 1 1 1 1 1 -3 1 1 1 1 1 1 -5 1 1 1 1 1 1 -8 | 1 1 1 1 1 -10 +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | 2 | | | | | | | | | | | | | | 2 | | | 2 | | | | | | 2 | +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | 3 | 4 | | | | 2 | 3 | | 3 | | | | | 3 | | | | | | | 3 | 4 +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | | | | | | | | | | | 4 | | | | | | | | | | | | | | | | | +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ =========== =========== =========== =========== =========== x 3 1 5 5 3 1 5 3 1 7b 5 x 1 7b 1 7b 3 1 7b 5 3 1 7b 5 3 1 5 5 3 Alternate shapes: C7, C form C7, A form C7, G form C7, E form =========== +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | | | 1 | -11 1 1 1 1 1 1 -3 1 1 1 1 1 | -5 1 1 1 1 1 1 -8 +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | 2 | | | | | | | | | | | | | | | | | | 2 | | +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | | 3 | 4 | | 3 3 3 | | 2 | | | | | 3 | | | | +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ | | | | | | | | | | | 4 3 | 4 | | | | | | | 4 | +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ +-+-+-+-+-+ =========== =========== =========== =========== x 3 1 5 5 3 1 7b 3 1 7b 7b x 7b 5 1 1 7b 3 1 x 5 3 1 Notice in the first diagram, the absence of the 5th degree. The absence of note doesn't take away from the character of the chord. The G could be played on the 3rd fret, 6th string with the 3rd finger. Try both, but this form is the one most commonly played.