The 4 basic triads and how to construct them.
Title explains it all. Lets jump in!
The first four triads you should learn how to construct will the be the building blocks for all the chords you could ever want to create.
For our example i will be using C Maj, C min, C dim, and C Aug.
First, we always use the major scale of the Triad we are trying to construct, so we need to start with the C major scale. I will label the scale degrees below!
C D E F G A B
1 2 3 4 5 6 7
Lets start with our Maj triad. The formula for a Major triad is 1-3-5. So our C Maj is C-E-G. This is the easy one!
Now to our Minor triad, exactly the same as the major triad but with a Flat 3! 1-b3-5 is our formula, so our C min is C-Eb-G. Notice when i say flat or sharp i mean moving a semitone up or down, or 1 fret for our guitarists out there!
Next for our Diminished triad. Our formula here is 1-b3-b5. So now we have a flat 3 and a flat 5! This looks like C-Eb-Gb.
Lastly we look at our Augmented triad. The formula for this is 1-3-#5. So our C Augmented would be C-E-G#!
It is super important to know these 4 triads, because these are the base for most of the more complex chords you know! Chords like Maj 7, Dom 7, Dim 7, Min 9, Ect. Any of these chords are much easier to understand once you realize we are starting with one of these four triads, and then adding notes from there!
This is also great for improvising! Once i understand how triads are created and the notes in my triads, it makes it much easier to understand which notes i should be targeting when i solo.
Hope this helped!