1. How to Read the Fretboard Diagrams

Every chord in the Chord Dictionary and Chord Finder is drawn the same way: a small fretboard diagram with dots, letters, and symbols standing in for exactly where your fingers go. Once you know the code, you can read any chord shape on this site — or in any chord book, tab, or lesson video — at a glance, without needing anyone to explain it to you.

The vertical lines running across the diagram are frets, and the horizontal lines are strings. The thick, lowest-pitched string (low E) sits at the bottom of the diagram, and the thin, highest-pitched string (high e) sits at the top — the same orientation you'd see looking straight down at the neck while holding the guitar upright and pointing the headstock away from you. The numbers running underneath the diagram (Nut, 1, 2, 3...) tell you exactly which fret you're looking at, so a shape drawn starting at "8" is meant to be played higher up the neck, not down at the open position.

• O above a string means play it open — don't fret it at all, just let it ring.
• X means mute or skip that string entirely, either by not strumming it or by resting an adjacent finger lightly against it.
• Numbers inside the colored dots are suggested fingers (1 = index, 2 = middle, 3 = ring, 4 = pinky) — they're a recommendation, not a rule, but they're worth following while you're still building muscle memory.
• A thick connecting bar between two dots marked "1" means barre both strings with your index finger flattened across that fret.

In the Chord Dictionary, hovering or clicking around the diagram also does something useful: it highlights which note each dot actually is, and the "Show Notes" button will reveal every note name on the fretboard at once, colored to show which ones belong to the current chord. That's a fast way to see not just where to put your fingers, but why the shape works — which notes are the root, the 3rd, the 5th, and so on.

The best way to get comfortable with this notation is to pick a chord you already know by ear, look it up in the Chord Dictionary, and check that the diagram matches what your fingers are already doing. From there, unfamiliar shapes stop looking like a puzzle and start looking like a map you already know how to read.