Triads for Guitar: The Chord Shapes Pros Use

A triad is just a collection of three notes that completes a major or minor chord. It’s the simplest real chord there is, with one exception: the power chord.

A power chord, the one and the five, is technically just two notes. Because there’s no third in there, it’s neither major nor minor. I used a lot of power chords when I was younger. These days, I barely touch them. There’s just not enough melody in them for me.

A triad gives you the third piece of information a power chord leaves out: whether the chord is major or minor. And once you can find these shapes on the fly, you’re playing in the same territory as guys like Jimmy Page. That whole “Stairway to Heaven” vocabulary is loaded with triad movement.

So let’s find them, and figure out what to do with them.

Finding your first triad

Let’s use the key of D. D sets up cleanly on this side of the twelfth fret, especially on acoustic, but this works in any key, any chord. We’re sticking to majors and minors today. You can absolutely take this further into sevenths, ninths, and beyond, but let’s build the foundation first.

Take your open D shape and drop the open D string on the bottom. What’s left, just those top three notes, is a perfect triad. One, three, five.

Inversions, in the same breath

Since we’re already talking triads, it’s worth talking inversions too. Any three-note major or minor chord has three inversions, and what determines the inversion is simply what note is sitting on the bottom of the stack.

Root position means the root is on the bottom: one, three, five.

First inversion means the third is on the bottom: three, five, one.

Second inversion means the fifth is on the bottom: five, one, three.

That D shape we just stripped down? It’s actually a second inversion triad, since the fifth is sitting on the bottom, with the root in the middle and the third on top.

The other two shapes you need

Next up is the A-shape bar chord, the CAGED shape where your root sits on the fifth fret of the A string. Grab the top three strings of that shape and you get one, three, five: a root position triad.

Last one is the E-shape bar chord. Same idea, come up to your D, grab the top three strings, and this time you land on a first inversion, since the third is on the bottom.

Those three shapes (the D shape, the A shape, and the E shape) give you root position, first inversion, and second inversion, all built off the same CAGED framework you already half-know. That’s the Jimmy Page approach to finding triads in a nutshell.

There are plenty of other ways to keep going down this rabbit hole, but those three shapes are a strong, standard starting point for your majors.

Now do it in minor

Switch that D shape to D minor and you’re still sitting on a second inversion, fifth on the bottom, root, then the minor third.

Take that same A-shape triad and flatten the third, and you’ve got a root position minor triad: one, minor third, five.

Do the same to the E-shape triad and you’ve got your first inversion minor: three, five, one, with that third flattened.

Once you have those minor and major versions down side by side, you can start moving through a triad shape and swapping thirds in and out. Take the A-shape D chord, drop the root off the bottom to make it easier to fret, flatten that third, and you’ve got a first inversion D minor without much extra work.

Why any of this matters

Triads are genuinely great for building chords. Once you’ve got a handful of these shapes under your fingers, you can start bending them into suspensions or reshaping them entirely.

One of my favorite tricks, and I picked this up being a huge Rush fan growing up, is what Alex Lifeson used to do with open strings inside his chords. For a D minor triad, dropping the open low E string underneath gives you a voicing you just can’t get out of a standard shape. Running through triads this way is a great way to break out of your usual open-position chords and land on something genuinely unique.

Inversions are also fantastic for building double stops, that sort of Hendrix-flavored double-stop phrasing where two notes move together in harmony.

Using triads in your lead playing

Here’s the part that really pays off. Once you know where your triads live, every note in them becomes a great landing spot when you’re soloing. Play a pentatonic lick over that chord, and those chord tones are your best options to resolve to. Good, reliable, always-work notes.

The more comfortable you get on the fretboard, the more you’ll start seeing these shapes overlap. The front half of one shape bleeds into the next, and the tail end of that one bleeds into another.

If you know your CAGED shapes, this will click almost immediately. If you don’t yet, this is exactly the kind of thing that makes CAGED make sense once you do. It also connects directly with arpeggios: same idea of using the chord as a map instead of guessing your way across the neck.

That road map is the whole point. Once you can see it, you’re not hunting for notes anymore. You already know where they are.

If you want to go further, adding sevenths and ninths into these shapes opens up even more inversions, since every extra note adds another possible note to put on the bottom. That’s a deep rabbit hole, but a fun one.

Work through as many keys and chord types as you can. The payoff is worth it.