In C major, C is C (natural)The key signature of C major does not alter C, so it stays natural.

Is C sharp or flat in C major?

In C major, C is natural: the key has no sharps or flats at all, so you play the plain C unless a written accidental says otherwise.

C major is the one major key written with no sharps and no flats, so every letter — C included — is played natural.

Spelled from the tonic, the C major scale runs C, D, E, F, G, A, B — one of each letter, each carrying whatever the signature gives it. The staff above draws the C major signature and the note C inside it — exactly as you would meet it in a piece written in this key.

Every letter in C major

C major has no sharps or flats. That fixes what each of the seven letters is called in this key:

  • C is C (natural — the signature leaves it alone) — the letter on this page
  • D is D (natural — the signature leaves it alone)
  • E is E (natural — the signature leaves it alone)
  • F is F (natural — the signature leaves it alone)
  • G is G (natural — the signature leaves it alone)
  • A is A (natural — the signature leaves it alone)
  • B is B (natural — the signature leaves it alone)

C major shares its signature with its relative A minor — the same sharps or flats, so C is natural there too.

Frequently asked questions

Is C sharp or flat in C major?
No. C major has no sharps or flats at all, so C is natural in this key.
What accidental does C carry in C major?
C stays natural. C major is the one major key written with no sharps and no flats, so every letter — C included — is played natural.
What sharps or flats are in C major?
C major has no sharps or flats at all.
How is the C major scale spelled?
From the tonic up: C, D, E, F, G, A, B. Each letter appears once, carrying whatever the key signature gives it.