Harmony · Beginner's guide

Chord Progressions for Beginners

See how a major scale creates chords, how Roman numerals describe their musical function, and how those chords become a progression you can play and improvise over.

Key→Scale→Chords→Progression→Melody

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Before you start

This lesson builds on key signatures and major scales. If you are not yet comfortable with them, it is a good idea to review the Key Signatures lesson first.

Review Key Signatures →

What Is a Chord Progression?

A chord is a group of notes played together. A chord progression is a sequence of chords. Progressions create movement: one chord leads to another and gives music a sense of direction.

Chord: C – E – G = C major

Progression: C → G → Am → F

How Chords Come From a Scale

Start with a scale you already know. In C major there are no sharps or flats:

To build a basic three-note chord — a triad — start on a scale degree and select alternate notes: root, third and fifth.

The Chords in a Major Key

Every major key follows the same pattern of chord qualities. Uppercase Roman numerals represent major chords; lowercase numerals represent minor chords.

Major – minor – minor – Major – Major – minor – diminished

Why We Use Roman Numerals

Roman numerals describe a chord's position in the key rather than one fixed chord name. That means the same musical pattern can be moved to another key.

Choose a key

I – V – vi – IV

Common Chord Progressions

You do not need dozens of progressions to begin. These three patterns are enough to hear how the same chords can create different kinds of movement.

How Melody Fits Over Chords

A simple way to start creating a melody is to use notes from the key. While a chord is sounding, its own notes — the chord tones — often feel especially stable.

G major scale

G – A – B – C – D – E – F♯

Scale notes: notes you can use

Over G major

G – B – D

Chord tones: strong targets

When the chord changes to D major, the chord tones become D – F♯ – A. The key has not changed — only the notes receiving the strongest harmonic emphasis.

Scale notes → Chord tones → Melody

Try it yourself

Hear it. See it. Play over it.

Choose a major key and chord progression, start the backing track, and watch the current chord tones change on the staff and interactive piano.

Play with a Backing Track →