One : F sharp!
The minor key with three sharps is B minor. In the key signature of B minor, the sharps are F#, C#, and G#. This key is the relative minor of D major, which also has two sharps in its key signature.
A Major. F#, C# and G#.
The key signature with 4 sharps is either E major or C# minor. In E major, the sharps are F#, C#, G#, and D#. In C# minor, the same sharps are used, but the tonal center is shifted to C#.
The key signature with 7 sharps is C-sharp major. In this key, the sharps are F-sharp, C-sharp, G-sharp, D-sharp, A-sharp, E-sharp, and B-sharp. Its relative minor is A-sharp minor, which also features the same key signature.
4 sharps will be F#, C#, G# and D#. They mean the key of E major, or its relative key of C# minor.
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.
The minor key with three sharps is B minor. In the key signature of B minor, the sharps are F#, C#, and G#. This key is the relative minor of D major, which also has two sharps in its key signature.
A Major. F#, C# and G#.
The key signature with 4 sharps is either E major or C# minor. In E major, the sharps are F#, C#, G#, and D#. In C# minor, the same sharps are used, but the tonal center is shifted to C#.
To determine the key signature with sharps in a musical piece, look at the last sharp in the key signature. This sharp will be a half step up from the note that represents the key. For example, if the last sharp is F, the key signature is G major.
The key signature with 7 sharps is C-sharp major. In this key, the sharps are F-sharp, C-sharp, G-sharp, D-sharp, A-sharp, E-sharp, and B-sharp. Its relative minor is A-sharp minor, which also features the same key signature.
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
A major uses three sharps, on F, C, and G.
4 sharps: F#, C#, G#, D#