Triads unlock the fretboard. Root, third, fifth. Three notes that tell you where you are over any chord. The idea is simple. Seeing it on the neck is not.
The insight
Dani Rabin walks through triad inversions across string sets, then moves them horizontally. Not shapes to memorise — a way to navigate. Janek Gwizdala does the same on bass: restrict yourself to a few shapes until they’re automatic. The goal isn’t knowing every position. It’s not having to think about the ones you know.
Same unlock from both. The triad gives you the chord tones, the notes that matter over any harmony. Everything else is decoration around those three points.
From spreadsheet to practice tool
I built a spreadsheet first. Pick a key, pick a chord, see the tones on a fretboard grid. It worked. But it was static — change the chord and you’re clicking cells. No sound, no time pressure. Practice needs a clock.
Fretboard Clarity replaced the spreadsheet. Pick a key, a scale, a progression. The fretboard lights up: gold for root, red for third, teal for fifth. Hit play and the chords advance on a metronome. Find the tones before the bar moves on.
How it changes practice
Start with R, 3, 5 over a ii-V-I. That’s the Dani Rabin exercise. When the triads feel automatic, toggle the seventh on — the pad adds it, the label updates from C to Cmaj7, the fretboard shows the new tone. What you see, hear, and read stay in sync.
Seven interval toggles (R, 3, 5, 7, 9, 11, 13) control everything. Each one adds to the fretboard, the pad voicing, and the chord name simultaneously. You build complexity at your own pace.
The ghost overlay is the detail that makes it click. The next chord’s tones fade in before the change — you see where you’re going while you’re still on the current chord. That moment of anticipation is where the learning happens.
Beyond major and minor
Six scale systems. Major and Natural Minor for most music. Harmonic Minor for the raised 7th and dominant V. Melodic Minor for the altered sound. Augmented and Diminished for symmetric harmony.
A borrowed chord section below the diatonic table shows chords from parallel scales — the bVII from Natural Minor, the V7 from Harmonic Minor. Tap one and the fretboard shows where the non-diatonic notes land.
Shapes mode
For colour-blind players or anyone who wants a second visual system: geometric indicators instead of (or alongside) colour. Circle for root, rounded square for third, diamond for fifth, triangle for seventh.
Every string count
Standard, Eb, Drop D, Drop C, Open G, DADGAD, 7-string, 8-string, 9-string. Bass in 4, 5, and 6-string with wider rendered strings. Left-hand mode flips the layout.
Phone on the music stand, fretboard at the top, controls below. No scrolling during practice.