Chords in the Key of C Major

Diatonic triads

Seventh chords

Stack one more scale tone on each triad and you get the seventh chords — same key, more color.

Common progressions in C major

• I–V–vi–IV

  C – G – Am – F

  The four-chord pop loop — a huge share of modern radio runs on it.

• I–IV–V

  C – F – G

  The three-chord workhorse behind blues, folk, and early rock and roll.

• ii–V–I

  Dm – G – C

  The jazz cadence — the strongest pull back home in the key.

• I–vi–IV–V

  C – Am – F – G

  The '50s doo-wop turnaround, still everywhere in ballads.

How the key of C major works

C Major carries no sharps or flats — all seven notes are naturals. The scale runs C–D–E–F–G–A–B, and stacking every other note of that scale builds the seven chords above without borrowing a single note from outside the key.

A Minor is the relative minor: identical key signature, identical seven chords. A song that treats Am — the vi chord here — as home base is in A minor, even though its chord inventory matches this page exactly.

The parallel minor, C Minor, keeps the same root but flattens the third, sixth, and seventh — its signature shifts to three flats (Bb, Eb and Ab). Borrowing chords across that line is where a lot of songwriting color comes from.

Playing C major on guitar

In C major, C, Dm, Em, G and Am are open chords you can play in first position. F needs a barre shape or a capo. The diminished Bdim is usually played as a small three-string shape rather than a full chord.

You rarely need a capo here, but one moves the same progression onto different open shapes and a different voicing. The I–V–vi–IV progression (C – G – Am – F) with a capo:

• Capo 5 · play it as G major

  G – D – Em – C

  4 of 4 shapes are open chords.

• Capo 3 · play it as A major

  A – E – F#m – D

  3 of 4 shapes are open chords.

• Capo 10 · play it as D major

  D – A – Bm – G

  3 of 4 shapes are open chords.

Work out a capo for any song's chords

Where C major sits on the neck

The root, C, is fret 8 on the low E string and fret 3 on the A string, the two places most major barre shapes and scale positions in C major are built from.

All six open strings are notes of C major, so any of them can ring against a fretted line without clashing.

The open G (the fifth) string makes a drone you can let ring under riffs and melodies in this key.

One note separates C major from each neighbour on the circle of fifths. Raise F to F# and you are in G major; lower B to Bb and you are in F major. Those are the two keys a song in C major most often modulates to.

Songs in C major

From the song library, these recordings sound in C major:

• Hallelujah, Jeff Buckley (capo 5)
• Let It Be, The Beatles
• Patience, Guns N' Roses
• Ho Hey, The Lumineers
• Don't Look Back in Anger, Oasis
• La Bamba, Ritchie Valens
• Dust in the Wind, Kansas

Keep practicing

• Practice the C major scale on the fretboard
• Jam these progressions over a backing track
• Transpose a song into or out of C major