Chords by Key
Every diatonic chord in all 24 major and minor keys, with signatures and progressions. Free. No sign-up.
How keys work
A key is a set of seven notes that a song treats as home. Pick a tonic — say G — and a mode — major or minor — and the key signature tells you which notes are sharpened or flattened to keep the scale's spacing intact. Stack every other note of that scale and you get the seven diatonic chords: the pool a song in that key draws from, each one named by a Roman numeral for its scale degree.
That numbering is why progressions transfer between keys. I–V–vi–IV is G–D–Em–C in G major and C–G–Am–F in C major — same shape, different starting note. Each major key also shares its exact signature with one minor key (its relative), which is why the table below pairs them. Pick a key to see its full chord set, seventh chords, and the progressions guitarists build from them.
| Major key | Relative minor | Signature |
|---|---|---|
| C Major | A Minor | none |
| G Major | E Minor | 1 sharp |
| D Major | B Minor | 2 sharps |
| A Major | F# Minor | 3 sharps |
| E Major | C# Minor | 4 sharps |
| B Major | G# Minor | 5 sharps |
| F# Major | D# Minor | 6 sharps |
| F Major | D Minor | 1 flat |
| Bb Major | G Minor | 2 flats |
| Eb Major | C Minor | 3 flats |
| Ab Major | F Minor | 4 flats |
| Db Major | Bb Minor | 5 flats |
Keep practicing
These pages tell you which chords belong together; the coach listens while you play them and scores every change. Start coaching →