From the course: Mandolin Lessons: 1 Fundamentals

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The 7th or dominant chords

The 7th or dominant chords

- Okay, by now you may have been in a jam session somewhere and somebody said, oh play a G7 there, play a D7. And you're starting to get confused about all these numbers. So let's try and clear up some of that mystery for you. So we're gonna talk about seventh chords. Seventh chords, everybody knows a G chord, right? We've shown you that. The simplest way to tell you is you simply play the F note with your first finger on the first fret. And voila, you've got yourself a G7. And that's it. Here's a little bit of the why of it. If you take a G scale. One, two, three, four, five, six, seven, eight. The seventh note of the scale, you flat it and add it to that chord and that creates the seventh chord. So here's G, here's G7. Practice going between those two. Now go back to the C chord. Again the beauty of the mandolin, same thing. Same shape. First fret on the second string, B flat. Instead of, this C note. Now let's look at the D chord. How do we make this into a seventh chord? We add a…

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