There are thousands of chord shapes in those fat chord books. Underneath all of them sit just four basic types. Learn the four and the rest are variations.
The four basic chord types are major, minor, diminished, and augmented. What separates them isn’t the root — it’s two notes: the third and the fifth. Change those, and you change the whole feeling. It’s the same idea behind building chords from a scale: every chord is a root, a third, and a fifth.
The four types at a glance
| Chord type | Third | Fifth | How it feels |
|---|---|---|---|
| Major | major 3rd | perfect 5th | bright, settled |
| Minor | minor 3rd | perfect 5th | dark, sad |
| Diminished | minor 3rd | flat 5th | tense, unstable |
| Augmented | major 3rd | sharp 5th | strange, unresolved |
Notice the root never appears in that table. It doesn’t decide the type. The third and the fifth do all the work.
Major and minor — the two you’ll use most
These two cover the vast majority of songs. The only difference is the third: a major third sounds happy, a minor third sounds sad. That single note is the whole story, which is why it gets its own post on major versus minor chords.
Diminished and augmented — the spice
Diminished takes the minor chord and also lowers the fifth. It sounds tense, like it badly wants to move somewhere. Augmented does the opposite — it raises the fifth, and the chord floats without a home. You hear both less often, usually as a quick step between two stronger chords.
Common questions
What are the 4 types of chords?
Major, minor, diminished, and augmented. Each is a three-note chord (a triad), and each is defined by the kind of third and fifth it uses.
What makes each chord type different?
The third and the fifth. Major has a major 3rd and perfect 5th. Minor lowers the 3rd. Diminished lowers both the 3rd and the 5th. Augmented keeps the major 3rd but raises the 5th.
Which chord types do beginners need first?
Major and minor. They cover almost every song you’ll want to play early on. Diminished and augmented can wait until you’re comfortable with the first two.
Go deeper — this is secret #1 of three
Four chord types, all built from the same two moving notes. That pattern goes a lot further than chords. The free 3 Theory Secrets videos connect it to keys and the whole fretboard — the stuff most teachers skip.
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