Time to open the hood, friend. Every chord you've been gripping is three notes wearing six strings. Let's meet the three.
A chord is three notes played together, chosen by one recipe: start on a note, skip one, take the next, skip one, take the next. Musicians count that as one, three, five. The starting note is the root, and it names the chord; a chord is the 1-3-5 team that starts on G.
🔑 KEY IDEA
Six strings, three notes
Here's the part that sounds like a magic trick. Major and minor, the happy chord and the sad one, differ by a single note. The root stays. The fifth stays. Only the middle note moves, one fret down, and the whole mood flips. That middle note, the third, is the chord's emotional dial: four frets above the root sounds bright, three frets sounds dark.
Hear the recipe with your own hands:
- 1Play E major, then lift your first finger off the G string and strum again. That's .
- 2Listen for the flip: same chord, one lowered note, bright turned overcast.
- 3Now call a chord's mood from its name alone: minor means the middle note dropped a fret.
This is why the same chord shows up as different shapes all over the neck: any grip that lands the same 1-3-5 team is the same chord, and the neck offers many ways to grab three notes. It's also why an open shape can't just slide up and stay itself; the fretted notes move but the open strings stay put, and the team breaks. Shapes were never the chord. They're fingerings for a recipe.
🔥 PRO TIP
This is all you need for now
Your hands knew these shapes, friend. Now your ears know the recipe. Play an E, flip it minor, and enjoy knowing exactly what you just did.
Your turn ⭐
Recipe check
Question 1 of 3
What's inside every basic chord?
The cheat sheet
- A chord is three notes from one recipe: root, third, fifth. 1-3-5.
- Six strings ring, three notes exist. Doubling fattens the sound, nothing more.
- The third is the mood dial: four frets up is major-bright, three is minor-dark.
- Shapes are fingerings for the recipe, which is why one chord has many shapes.
Common questions
Do I need to know the notes inside every chord I play?
No. Knowing the recipe exists is the win; spelling every chord is reference-book work your playing doesn't need yet. Spell out one or two favorites, C and E are satisfying, and let the rest stay shapes until curiosity strikes.
Why does my C chord skip the low E string?
Because that string's open E isn't the strongest note to lead with. The chord wants its root, C, in the bass, and the low E string sitting under it muddies the foundation. The X on the diagram is the recipe protecting its own bottom note.
What about chords like G7 or Asus, with extra letters?
Same 1-3-5 core with a guest note added or a team member swapped. The suffix names the guest. G7, for example, is a plain G plus one extra note, and it's interesting enough that we gave it its own guide.