Our flagship course
Learn the whole fretboard through triads. Levi’s three-shape ACE system takes you from your first major and minor shapes to 7th chords and open voicings, played along with him over backing tracks.
Watch the trailer
Levi explains the system in three minutes.
Course progression
Learn the shapes, drill them with Levi, then play real chord progressions.
Find each major chord in all three shapes, from the root on the low strings.
Play Wealthy Lady, one of 10 etudes, with triads instead of big chords.
Play the changes of Sunny with 7th chords built from triads.
Includes interactive tab
Every routine comes with tab synced to the video. Set it up your way and practice until it feels easy.
Your roadmap
A clear path from your first triads to full harmonic control, so you see the fretboard and use triads with confidence.
Level 1 builds the core of the system: octave shapes and the ACE system, the E, A and C barre chord forms.
You learn to see triads across the whole neck instead of memorizing loose shapes, in G, C and D and then all 12 keys. Five etudes put it to work in real music.
Lessons include:
Level 2 is all about closed voice triads: three notes on neighboring strings, small chord shapes you hear in blues, funk, rock, soul and jazz rhythm playing.
You take I IV V across the fretboard with smooth voice leading, then play the five etudes again with these voicings.
Lessons include:
Level 3 adds augmented and diminished triads for tension and movement.
Then diatonic chord scales show how triads live inside a key, and chord melodies add passing notes for a gospel sound.
Lessons include:
Level 4 shows how to mutate the triads you know into sus chords, 6th chords and full 7th harmony: dominant, minor and major 7ths.
Move one note and you get a new chord, so the extra harmony grows out of shapes you already see.
Lessons include:
Level 5 spreads triads wider than an octave: 10ths, inversions and open voicings on the bottom, middle and top strings.
Then you use them in real arrangements, from Amazing Grace and a G walkdown to Shape of My Heart and two Toy Story songs.
Lessons include:
From essential barre chord triads to closed voicings, 7th chords and open voicings.
Learn a concept, then play along with Levi in real time so it actually sticks.
Use everything you learn in real music, with custom backing tracks.
No filler and no overload. A clear path to triad fluency.
From GPR members
From guitarists working through the course, plus a few words about GPR.
I'm almost at the end and I've been playing for decades. In a few weeks it all made sense. I can now see the fretboard clearly instead of relying on the same two or three positions and boxes. The best online course I've ever followed.
It makes no promise of being a magic bullet, but with practice and persistence you get better, and it delivers. I'm still in the early stages and it already helped me see the fretboard in a way other material hasn't.
Theory and technique books did very little for me. I've finished the Triads course and my fretboard visualization is leagues ahead of where it was. Transcribing and learning songs are so much easier now.
I have been using Levi's practice routines for some time now. It has given me a new way to look at the fretboard, giving me more confidence when improvising.
Dave HausnerOregon, USA · GPR memberHe breaks down complex concepts in rhythm, melody and harmony into simple, clear lessons, making it easy to see how musicians find their sound.
Stephen LaffertyBelgium · GPR memberLeave no stone unturned is a fitting expression to describe Levi's teaching. His own playing is both motivating and inspirational, and it's a real bargain for the price.
Chris MullinVermont, USA · GPR member
Choose how you learn
Buy it once and keep it, or join and get the whole GPR library.
Course only
One-time payment · yours for life
Membership Best value
or $24.99 billed monthly · cancel anytime
| What you get | Course | Membership |
|---|---|---|
| Triad Mastery, all 39 routines | ||
| Tab and backing tracks | ||
| How long you keep it | Forever | While subscribed |
| 200+ other guided routines | – | |
| New routines every month | – | |
| Feedback from Levi | – |
Try it for 14 days. If the course isn't right for you, email us within 14 days and you get a full refund.
Common questions
Ready to start?
Five levels, 39 routines and 10 etudes, played along with Levi over backing tracks.
Triad Mastery39 guided routines · $89.99 one-time
