Premier Guitar features affiliate links to help support our content. We may earn a commission on any affiliated purchases.

How to Map Triads

How to Map Triads

Simple shapes can lead to memorable parts.

Beginner

Beginner

  • Learn how to visualize triads all over the neck.
  • Develop an understanding of inversions.
  • Create memorable and melodic guitar parts.
{'media': '[rebelmouse-document-pdf 13280 site_id=20368559 original_filename="TriadMaps_Jan22.pdf"]', 'file_original_url': 'https://roar-assets-auto.rbl.ms/documents/13280/TriadMaps_Jan22.pdf', 'type': 'pdf', 'id': 13280, 'media_html': 'TriadMaps_Jan22.pdf'}

Mapping major and minor triads up and down the guitar neck can open new possibilities in your playing. It can also help you learn note locations on the fretboard, find new ways to play chord progressions, and inspire creative improvisations and compositions. But where do you begin?


If you’re a beginner or intermediate player who views areas on the neck as unknown grey areas, learning to map out triads can really help. It’s important to practice them slowly and systematically so you can build up positive muscle memory in the fretting hand while making sure you’re spelling triads correctly. In terms of a practical approach, it’s best to break down triads into four separate string groups. In other words, you’re only going to practice and play three adjacent strings at a time. For our purposes, think about string groups as 1–2–3, 2–3–4, 3–4–5, and 4–5–6.

First, let’s look at a D major triad. The individual notes that spell a D major triad are D–F#–A (or scale degrees 1–3–5 of the D major scale). In Ex. 1 I’ve mapped out all three inversions of a D major triad on the top three strings. An inversion is simply a rearranged voicing of the same three notes contained in a triad. You’ll notice that the very first shape is probably one you already know and play often: the tried-and-true cowboy chord D with no open strings. That D chord shape has an A in the lowest voice. Since the 5 (A) is the lowest note of the chord we refer to it as a second inversion shape.

As we move up the neck, those notes cycle around to new positions, creating new shapes, and placing a different note in the lowest voice. Notice the second shape. It is also a D major triad, but the root is now in the lowest voice. This is a root position triad. Next, the third shape gives us the 3 in the lowest voice, or a first inversion triad.

In Ex. 2, you’ll see triads in D major for the remaining string groups: 2-3-4, 3-4-5, and 4-5-6.

To point out the obvious, when it comes to practical applications of triads when playing songs and chord progressions, you’ll need a little more knowledge than just major triads. You can, however, cover a lot of ground simply knowing both major and minor triads.

What’s the difference between a major and minor triad? Simply moving one note–the major third–down a single fret. In our examples, we will be moving the F# to F natural. In Ex. 3 you can see how this changes the shapes on the top three strings.

How to Practice Triads

While there are many ways to practice these exercises, I have seen students have the most success with a combination of two methods:

Play-and-Say. Play the chord, say out loud the name of its inversion, then arpeggiate through the chord saying the note names as you play them (“D major triad, second inversion, A, D, F#”).

Apply to a song or chord progression: Take a common chord progression and use triads on one string group instead of playing open chords.

Once you have a good knowledge of major and minor triads, you can start to mix and match inversions, weaving them together to play common chord progressions. In Ex. 4, we see a simple chord progression in D: D–Bm–Em–A. Let’s start by looking at this progression on the top set of strings. (I’ve written them out in half-notes in order to demonstrate the shapes more clearly. It’s up to you to invent strumming or picking patterns.)

Naturally, we want to move this progression around the fretboard. Ex. 5 is the same progression on strings 4–3–2. Here’s a tip: For these shapes I simply moved whatever note was on the 1st string down an octave to the 4th string.

Experiment and Explore

Try playing Ex. 4 and Ex. 5 backwards to hear the progression descending. Next, try jumping around to different inversions and octaves while still following the order of chords in the progression. This works well for electric guitar players looking to create unpredictable and complementary guitar parts while someone else plays open chords. Experiment with using various effects. Delays and reverbs can be especially fun when playing around with high-voiced triads. Arpeggiate through the triads, play them as punchy chop chords, add and remove notes with any spare fingers to create counter melodies—whatever sounds good to your ears.

The Mick Ronson Cry Baby Wah, meticulously recreated from his own pedal, offers fixed-wah tones with a custom inductor for a unique sound.

Read MoreShow less

Slayer announces a one-night-only show just added to the band’s handful of headline concerts set for this summer. Marking the band’s only U.S. East Coast performance in 2025, Slayer will headline Hershey, PA’s 30,000-seat Hersheypark Stadium on Saturday, September 20, 2025.

Read MoreShow less

Over the decades with Hüsker Dü, Sugar, and solo, Bob Mould has earned a reputation for visceral performances.

Photo by Mike White

The 15th studio album from the legendary alt-rocker and former Hüsker Dü singer and 6-stringer is a rhythm-guitar record, and a play in three acts, inspired by sweaty, spilled-beer community connection.

Bob Mould wrote his last album, Blue Heart, as a protest record, ahead of the 2020 American election. As a basic rule, protest music works best when it's shared and experienced communally, where it can percolate and manifest in new, exciting disruptions. But 2020 wasn’t exactly a great year for gathering together.

Read MoreShow less

Reader: Federico Novelli
Hometown: Genoa, Italy
Guitar: The Italian Hybrid

Reader Federico Novelli constructed this hybrid guitar from three layers of pine, courtesy of some old shelves he had laying around.

Through a momentary flash, an amateur Italian luthier envisioned a hybrid design that borrowed elements from his favorite models.

A few years ago, at the beginning of Covid, an idea for a new guitar flashed through my mind. It was a semi-acoustic model with both magnetic and piezo pickups that were mounted on a soundboard that could resonate. It was a nice idea, but I also had to think about how to make it in my tiny cellar without many power tools and using old solid-wood shelves I had available.

I have been playing guitar for 50 years, and I also dabble in luthiery for fun. I have owned a classical guitar, an acoustic guitar, and a Stratocaster, but a jazz guitar was missing from the list. I wanted something that would have more versatility, so the idea of a hybrid semi-acoustic guitar was born.

I started to sketch something on computer-aided design (CAD) software, thinking of a hollowbody design without a center block or sides that needed to be hot-worked with a bending machine. I thought of a construction made of three layers of solid pine wood, individually worked and then glued together in layers, with a single-cutaway body and a glued-in neck.

For the soundboard and back, I used a piece of ash and hand-cut it with a Japanese saw to the proper thickness, so I had two sheets to fit together. Next, I sanded the soundboard and bottom using two striker profiles as sleds and an aluminum box covered in sandpaper to achieve a uniform 3 mm thickness. A huge amount of work, but it didn't cost anything.

“It was a nice idea, but I also had to think about how to make it in my tiny cellar without many electric tools and out of old solid-wood shelves I had available.”

The soundboard has simplified X-bracing, a soundhole with a rosewood edge profile, and an acoustic-style rosewood bridge. For the neck, I used a piece of old furniture with straight grain, shaped it to a Les Paul profile, and added a single-action truss rod. The only new purchase: a cheap Chinese rosewood fretboard.

Then, there was lots of sanding. I worked up to 400-grit, added filler, primer, and transparent nitro varnish, worked the sandpaper up to 1,500-grit, and finally polished.

Our reader and his “Italian job.”

For electronics, I used a Tonerider alnico 2 humbucker pickup and a piezo undersaddle pickup, combined with a modified Shadow preamp that also includes a magnetic pickup input, so you can mix the two sources on a single output. I also installed a bypass switch for power on/off and a direct passive output.

I have to say that I am proud and moderately satisfied both aesthetically and with the sounds it produces, which range from jazz to acoustic and even gypsy jazz. However, I think I will replace the electronics and piezo with Fishman hardware in the future.

Read MoreShow less