C Chord
Major chords are the 'happy', stable triads of Western music. The interval of a major third (4 semitones) above the root gives them their bright, resolved character.
Notes in C
The C major chord contains C — E — G. It is built from the following intervals above the root:
| Degree | Interval name | Note |
|---|---|---|
| 1 | Root | C |
| 3 | Major third | E |
| 5 | Perfect fifth | G |
Interval formula: root (1) — major third (3) — perfect fifth (5) (0, 4, 7 semitones).
Sound and Character
Major chords are the 'happy', stable triads of Western music. The interval of a major third (4 semitones) above the root gives them their bright, resolved character. Lowering the middle note of C by one semitone creates C minor. This comparison is one of the most instructive exercises in music — hear how one half step changes the entire emotional character.
Key Function
C major is the I chord in C major and appears in related keys: C major (I), F major (V), G major (IV), Bb major (II). Tonic (I), subdominant (IV), or dominant (V) chord in its namesake key. Also appears as III, VI, or VII in relative/parallel keys.
Famous Songs Featuring C
- "Let It Be" – The Beatles
- "Imagine" – John Lennon
- "Clocks" – Coldplay
Voicing Tips
On piano: root in left hand, close-position triad in right. On guitar: most major chord shapes use open strings for a resonant, full sound. Open the MusoKit chord finder to see C on piano, guitar, and ukulele with audio playback — compare voicings across instruments to find the one that fits your playing style.
FAQs
What notes are in the C chord?
The C major chord contains: C — E — G. The intervals are root (1) — major third (3) — perfect fifth (5).
What key is the C chord in?
C major is the I chord in C major and appears in related keys: C major (I), F major (V), G major (IV), Bb major (II).
How do you play C on guitar?
Open the chord finder to see common guitar voicings for C. C is available in multiple positions — the chord finder shows the most practical shapes for each instrument.
What is the difference between C major and C?
They are the same chord — C major and C both refer to the same triad: C — E — G.
What chords go well with C?
Chords from the same key sound most natural alongside C. Use the scale explorer to explore the full set of diatonic chords in the keys where C appears, and the circle of fifths to find harmonically adjacent chords.