One : F sharp!
A Major. F#, C# and G#.
4 sharps will be F#, C#, G# and D#. They mean the key of E major, or its relative key of C# minor.
A major uses three sharps, on F, C, and G.
When adding sharps to a key, the order is F, C, G, D, A, E, and finally B. With flats, it's the exact opposite.
G#. D#, A#, E#, B#
The key of G Major has one sharp: F#
There are no sharps in the key signature, but in the harmonic minor there is a G#.
There is only one sharp that a G major has in its key signature.
A Major. F#, C# and G#.
4 sharps will be F#, C#, G# and D#. They mean the key of E major, or its relative key of C# minor.
What is a key signature? A key signature is the number of sharps or flats in a piece of music. For example C Major has no sharps G Major has 1 Sharp F Major has 1 Flat B flat
4 sharps: F#, C#, G#, D#
A major uses three sharps, on F, C, and G.
The key of G-sharp minor has 5 sharps (it's the relative to B major). G-flat minor is a key that only exists in theory, because that key signature would contain 9 flats. The limit on flats or sharps in a key is 7.
That would be either G major or E minor.
When adding sharps to a key, the order is F, C, G, D, A, E, and finally B. With flats, it's the exact opposite.
C sharp major, or A sharp minor. The sharps are F, C, G, D, A, E and B.C# Major does