Fretboard Notes
The neck, fully labelled
Every fret on every string. Tap a note name to light up every place it lives on the neck — the constellation is what your eye is learning to find.
Two anchors save your life: every open string repeats at the 12th fret, and every note at fret 5 (or 4 on the B string) matches the next open string up. Memorize the natural notes (no sharps/flats) on the low E and A strings — the rest of the neck falls out from those two.
Why this matters
If you can't immediately point to D on the G string, every other skill on guitar — soloing, comping, building chords on the fly — runs at half speed. Note recall is the keyboard equivalent of touch-typing: invisible when you have it, crippling when you don't.
This trainer is fast. Prompts come one after the other, you click, you move on. The reps build the muscle.
Anchor frets — the shortcuts
You don't need to memorize 72 positions cold. Three anchors collapse the work:
| Anchor | What it gives you |
|---|---|
| Open strings | E · A · D · G · B · e (low to high). The starting points for every string. |
| 5th fret rule | Every fret-5 note matches the next open string up — except the G string (use fret 4 there because B is only 4 semitones from G). This is how guitarists tune by ear. |
| 12th fret = octave | Whatever you know at fret X repeats at fret X+12. Fret 12 looks exactly like the open strings, an octave higher. |
| Inlay dots: 3, 5, 7, 9, 12 | The double-dot at 12 is the visual reset. Frets 3, 5, 7, 9 are where the natural notes cluster on the lowest strings. |
The visualizer above this section is the entire fretboard with every note printed. Tap a root chip (C, D, …) to light up that note across all six strings — that's the "constellation" each note forms. Internalising the constellation for A, D, E, and G is 80% of the work.
Memory technique: octave shapes
Every note repeats in three places within a 12-fret span. The shapes between octaves are constant:
- Low E → D string, +2 frets — e.g. A on low E (fret 5) and A on D string (fret 7).
- A → G string, +2 frets — e.g. D on A (fret 5) and D on G (fret 7).
- D → B string, +3 frets — yes, +3 not +2. The G–B interval is a major 3rd, not a 4th. The B string is the troublemaker.
- G → high e, +3 frets — same compensating jump.
If you know a note in one place, the other two are these fixed offsets away. The Octave Trainer drills exactly these shapes.
Why piano players have it easier (and why we don't care)
On piano, every note has exactly one home. On guitar, the same pitch lives in 3–4 places, which is what makes the instrument hard to learn but vastly more expressive to play. The redundancy is a feature: knowing all the places to find a G means you can pick the fingering that fits the rest of the phrase, instead of being stuck with one shape.