You don’t need a music degree to understand how chords work. A bit of theory goes a long way — it’s the difference between memorizing shapes and actually knowing what you’re playing. Once the logic clicks, you can figure out chords on your own, build progressions from scratch, and communicate with other musicians without guessing.

How Chords Are Built

Every chord is just a handful of notes stacked according to a pattern. Change one note and a major chord becomes minor. Add one note and a basic triad becomes a seventh chord. Understanding this gives you the ability to build any chord yourself, anywhere on the neck.

How to create your own guitar chords — walks through the process of building chords from the ground up, so you’re not dependent on chord charts.

Guitar root notes explained — every chord has a root, and knowing where it sits on the fretboard is the key to navigating chord shapes across positions.

Major vs Minor

The difference between a major and minor chord is exactly one note — the third. That single half-step shift changes the entire mood from bright to dark. It’s one of the most fundamental things to understand in music, and it’s simpler than most people think.

Slash Chords

A slash chord is just a chord with a different note in the bass — like C/G or Am/E. They show up everywhere in pop and rock, and they’re easier to play than they look. The #1 slash chord on guitar covers the most common and useful one.

The Nashville Number System

Professional musicians rarely talk about chords by letter name. They use numbers — the “one chord,” the “four chord,” the “five chord.” This system lets you instantly transpose any song to any key, and it makes chord progressions across different songs suddenly look identical. It’s one of the most practical pieces of theory you can learn.

Transposing With a Capo

A capo changes your key without changing your chord shapes. But to use it well, you need to understand what’s actually happening — which key you’re in, which chords you’re really playing, and how to pick the right fret for the key you need.

How to transpose chords with a capo — covers the theory and includes an interactive tool so you can figure out any transposition quickly.

Songwriting With Chords

Theory isn’t just for analysis — it’s the foundation of writing your own music. Knowing which chords naturally go together in a key, and why certain progressions create tension or resolution, turns you from someone who borrows chord progressions into someone who creates them.

Songwriting tips for guitar — getting started writing songs using chord progressions as your foundation.

Keep Going