From the course: Mandolin Lessons: 1 Fundamentals

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7th chords as dominants

7th chords as dominants

So these seventh chords are dominate chords. They add a little spice to our harmony. They add a little tension, and just a little color to spicen up the chords. C, G, D seven. It just sounds a little more rich than plain old D. Now if you're just cooking with salt and pepper, you know you gotta have a little garlic in there once in awhile. So we're going to continue on this vein. If we were in the key of D for instance, our one, four, and five, our D, G, and A, A being the five chord, it needs to become a seven, or a dominate chord. So how do we make an A into an A seven. Here's your bar A that I showed you earlier. And what is the seventh note of an A scale? A, B, C, D, E, F, G. We're going to add a G note to that chord. (plays chord) And it's fingered like that. Bar into low two, third finger on the fourth fret, C sharp, and second finger on the third fret, at the G note. So there's your A seven. We're going to pretend we're in the key of D. (lighthearted music) We're going to go…

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