C Major Scale

The C Major Scale — All 8 Notes

The C Major Scale uses the universal major scale formula — W W H W W W H (whole step, whole step, half step, whole step, whole step, whole step, half step). Every major scale applies this same pattern; only the starting note changes.

C major is the only major scale with no sharps or flats — it uses all seven natural notes. On piano this means all white keys. This is why C major is the universal starting point for learning music theory.

How to Build C Major Scale from Scratch

Start on C and count up using the whole step / half step pattern. A whole step = 2 semitones. A half step = 1 semitone.

Key Signature

The key of C major has no sharps and no flats. In written music, this means an empty key signature — nothing before the time signature. Every note is natural.

The C Major Scale sits at the top of the circle of fifths. Adjacent keys on the circle share 6 of the same 7 notes — which is why modulating to G major or F major always sounds smooth.

All 7 Chords in C Major Scale

Stack every other note of the C Major Scale on each scale degree and you get seven triads. The pattern of chord qualities is always the same in any major key: major — minor — minor — major — major — minor — diminished.

The I chord (C) is the tonic — home base, the most stable. The V chord (G) creates the strongest pull back to the tonic. The IV chord (F) adds lift and openness. These three chords — I, IV, V — underpin most of the songs you know in this key.

Common progressions in C major

• I – IV – V – I: C – F – G – C — the universal blues/rock backbone
• I – V – vi – IV: C – G – Am – F — the "four-chord" pop progression
• ii – V – I: Dm – G – C — the jazz standard cadence
• I – vi – IV – V: C – Am – F – G — 1950s doo-wop, countless pop ballads

Relative Minor: A minor

Every major scale has a relative minor that shares its exact same notes — just with a different note acting as home base. The relative minor of C major is A minor.

Both scales use the same 7 natural notes. The difference is purely in which note functions as the tonal centre. C major sounds bright and resolved; A minor sounds darker and more introspective — even though the pitch content is identical.

Songs that shift between C major and A minor don't change key signature — they're just moving the gravitational centre of the same note set.