The last sharp in the signature is one half-step below the key's tonic.
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.
Go up a half-step from the last sharp in the key signature.
G sharp
D major has a key signature of F sharp and C sharp D minor has a key signature of B flat
There is no key signature that has Bb and C#.
A sharp key signature is one that contains sharps.
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.
Go up a half-step from the last sharp in the key signature.
G sharp
G sharp
The key signature that includes the note E sharp is the key of F sharp major.
D major has a key signature of F sharp and C sharp D minor has a key signature of B flat
C# Major
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.
To read sharp and flat notes effectively, remember that a sharp raises a note by a half step and a flat lowers a note by a half step. Pay attention to the key signature at the beginning of the piece to know which notes are consistently sharp or flat. Practice identifying and playing these notes to improve your fluency in reading music.
A major, or F# minor
The key signature for D sharp minor would be the one for F sharp major: FCGDAE. You can also think of it as E flat minorwhich is related to g flat major in which the key signature would be BEADGC.