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Hey welcome to GuitarLessons.com. In this lesson, in the music theory section, we’re going to be talking about diatonic thinking. And all diatonic thinking really is thinking about a given key; let’s say the key of G Major and all the chords and scales that naturally falling in that key without having any altered notes or anything like that.
So, one way to work on diatonic thinking start having a mentality that thinks like this is to use a chord scale. I’ll show you what that is real quick and then we’ll learn it together. [Demonstration]
Okay, so all I did right there was walk up to GM scale. With my base notes and play the chord on top for the rest of using 7th chords, for each individual scale degree. So, let me explain to you, I’m using a GM7 right here, G for the scale, moves up to the second scale in A, play an Am7, because that’s the two-chord in the key of G, three-chord in the key of G is a B minor. Some are using the Bm7 right here, next chord is going to be based off the fourth scale degree, that’s going to be a C and that’s a CM7, if you’re in the key of G. This scale degree is a D, so we’re going to build a D Dominant 7th chord off of our D note, six scale degrees in E, and the sixth chord of the major key is always minor, so we’re going to do Em7. And then finally, I’m coming all the way back down here to an F# minor7#five chord, or it’s called half-diminished chord to because the seventh chord in our majors key is always diminished or half-diminished, depending if it’s a seventh chord or not. And finally, back up to GM7.
So really, we’re talking about diatonic thinking or we’re talking about the given chords, scales or arpeggio whether they’re major quality or like the Am, the two of the G. They could be a minor quality in that key. So, we’re just basically talking about thinking of the chords in that key.
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