In A major, F is F (sharp)The key signature of A major puts a sharp on every F.

Is F sharp in A major?

In A major, F is F♯: the key signature puts a sharp on every F, in every octave, for as long as that signature stands.

The signature of A major is three sharps, F♯, C♯ and G♯. F♯ is one of them, which is why you never see a sharp written next to the note — the signature at the start of the staff already said it.

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

Every letter in A major

A major has three sharps, F♯, C♯ and G♯. That fixes what each of the seven letters is called in this key:

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

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

Frequently asked questions

Is F sharp in A major?
Yes. A major has three sharps, F♯, C♯ and G♯, and F♯ is one of them, so every F in the key is played as F♯.
What accidental does F carry in A major?
F is F♯ (sharp). The signature of A major is three sharps, F♯, C♯ and G♯. F♯ is one of them, which is why you never see a sharp written next to the note — the signature at the start of the staff already said it.
What sharps or flats are in A major?
A major has three sharps, F♯, C♯ and G♯ — written in that order at the start of the staff.
How is the A major scale spelled?
From the tonic up: A, B, C♯, D, E, F♯, G♯. Each letter appears once, carrying whatever the key signature gives it.