So far, we have taken most of our chords from two basic families. Knowing these two families intimately will be invaluable to you over time and make chord building very easy to do on the fly.
Before we get too far along, take a look at this reference chart.
I've blocked out the regular dominate 7 chords in solid dots and left some relevant intervals (such as b3 or b5) to give you some reference. You can use this chart to quickly learn and find different qualities of chords. Use it as a reference at first and then start trying to remember the chords.
Building Extensions
To build extended chords we need to understand what we are meaning by that. Basically, an extended chord is one beyond a simple 7th chord. You may have seen these are 9ths, 11ths, or 13ths. To create one of those chords, we need to understand what the 9th, 11th, and 13th interval is. Basically, just keep counting.
| C | D | E | F | G | A | B | C | D | E | F | G | A | B | C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
So, if we wanted to add a 9 to a chord to get a nice swingy sound, we would simply find the 9th degree of the scale and put that in the chord. Since the 9 is the same as the two, we will often replace the root chord with a 9 by going up from the root two frets. We used that in the previous lesson where a 5-4-3-2 shape with the 3rd in the base became a 9 chord.
Try playing around with the chord shapes, their qualities, and some extensions and putting them into your rhythm playing.
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