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Find Chords for Any Song — Free AI Chord Finder

Chord Progression Builder

Pick a key, see which chords fit, and build your progression.

Diatonic Chords

Click a chord to add it to your progression. Click the chord name to see diagrams.

Common Progressions

Your Progression

Click chords above or pick a preset to start building.

How It Works

1

Choose a Key

Select any major or minor key from the dropdown. You'll see all 7 diatonic chords that naturally fit together.

2

Build Your Progression

Click chords to add them to your progression, or pick a common preset like the classic I-V-vi-IV pop progression.

3

Listen & Share

Hit Play to hear your progression with adjustable BPM. Copy the chord sequence to share with bandmates or save for later.

Frequently Asked Questions

What is a chord progression?

A chord progression is a sequence of chords played in order. Common progressions like I-V-vi-IV are the foundation of countless hit songs across all genres.

What are diatonic chords?

Diatonic chords are the 7 chords naturally formed from a major or minor scale. In C major, these are C, Dm, Em, F, G, Am, and Bdim. They all sound good together.

What is the most common chord progression?

The I-V-vi-IV progression is the most popular in modern music. In the key of C, that's C-G-Am-F. It's used in thousands of pop, rock, and worship songs.

How do I use this chord progression builder?

Select a key from the dropdown, then click diatonic chords to build your progression. Use preset buttons for common progressions. Press Play to hear your progression, or Copy to share it.

Browse Chord Progressions by Key

Major Keys

Minor Keys

Hear Real Chords from Any Song

Upload an audio file and let our AI detect the exact chords. Works for any genre and language.

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