Pick a key. Build a progression. Hear it loop.
Every chord shown belongs to the key, so anything you build will sound coherent. Start from a progression you already know, or stack your own.
Key
Major or minor
The seven chords in this key — click to add
Or start from one you have heard a thousand times
Keyboard
Guitar
Why it works
You cannot build a bad progression here
Only the seven chords of the key are offered, and they all draw on the same seven notes. That is what makes any order of them sound coherent — the constraint is doing the work, not your taste.
Roman numerals travel
I–V–vi–IV is the same progression in every key. Change the key and the shapes change; the relationship does not.
Three major, three minor, one odd
Every major key has the same pattern. Once you see it, you can work out the chords of any key without a chart.
The V wants to go home
Put the V chord before the I and listen. That pull is the strongest movement in Western music.
Keep going
The theory underneath
The circle of fifths
Why neighbouring keys share chords, and how to move between them without it sounding wrong.
Read →How chords are built
Stacked thirds, and why major and minor differ by a single note.
Read →Chord finder
Any chord in any key, with playable guitar shapes and the notes on a keyboard.
Open tool →