Two flats, the same as Bb Major.
The key of E minor has one sharp: F sharp. It is the relative minor of G Major.
The clef does not affect the key signature. The key signature with one sharp (F#) stands for G major. The relative minor key is e minor.
A major key sounds more bright and cheerful than a dark, evil minor key signature. There are 12 major key signatures (C, F, Bb, Eb, Ab, Db, Gb, B, E, A, D, and G). To identify whether a piece is minor, look at the key signature. If the name of the key signature is the name of the last note, then you are in a major key signature. If it is not, chances are you are in a minor key signature.
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.
6 flats. B, E, A, D, G and C.
The corresponding minor key to G Major is e minor. The key signature will be the same, one sharp: F#.
Bb and Eb
There are no sharps in the key signature, but in the harmonic minor there is a 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.
Minor and major are two diatonic scales. A minor has no key signature. The key signature of A Major is three sharps, F# C# G#.
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.
G (or E minor)
The key of E minor has one sharp: F sharp. It is the relative minor of G Major.
That is the signature for the key of Db. Or, it's relative minor, Bb minor.
The clef does not affect the key signature. The key signature with one sharp (F#) stands for G major. The relative minor key is e minor.
A major key sounds more bright and cheerful than a dark, evil minor key signature. There are 12 major key signatures (C, F, Bb, Eb, Ab, Db, Gb, B, E, A, D, and G). To identify whether a piece is minor, look at the key signature. If the name of the key signature is the name of the last note, then you are in a major key signature. If it is not, chances are you are in a minor key signature.
F# minor has a key signature of 3 sharps, whereas Gb minor has a key signature with 6 flats. It's easier to use key signatures with fewer flats/sharps.