That would be the key of A-sharp minor, the relative to C-sharp major, which contains seven sharps. The leading tone is G-double-sharp.
You can tell the difference between a key signature in major or minor based on the number of sharps or flats in the key signature. A major key signature typically has more sharps or fewer flats, while a minor key signature typically has fewer sharps or more flats. Additionally, the key signature in major often corresponds to the major scale, while the key signature in minor often corresponds to the relative minor scale.
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#.
D major and B minor.
A key signature is the placement of sharps or flats at the beginning of a piece of music which determines what the key of a song is and unlike the time signature it is repeated every line; here is a list of all the possible keys you can write in:C Major/a minor (no sharps and no flats)Sharp Keys:G Major/e minor (1 sharp)D Major/b minor (2 sharps)A Major/f♯minor (3 sharps)E Major/c♯minor (4 sharps)B Major/g♯ minor (5 sharps)F♯ Major/d♯ minor (6 sharps)C♯ Major/a♯ minor (7 sharps)Flat Keys:F Major/d minor (1 flat)Bb Major/g minor (2 flats)Eb Major/c minor (3 flats)Ab Major/f minor (4 flats)Db Major/bb minor (5 flats)Gb Major/eb minor (6 flats)Cb Major/ab minor (7 flats)
4 sharps will be F#, C#, G# and D#. They mean the key of E major, or its relative key of C# minor.
There are no sharps in the key signature, but in the harmonic minor there is a G#.
C major and A minor both have no sharps or flats.
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.
C Major, zero flats and zero sharps. The minor scale with the same number of flats and sharps is A Minor.
You can tell the difference between a key signature in major or minor based on the number of sharps or flats in the key signature. A major key signature typically has more sharps or fewer flats, while a minor key signature typically has fewer sharps or more flats. Additionally, the key signature in major often corresponds to the major scale, while the key signature in minor often corresponds to the relative minor scale.
There's no sharps of flats in the key signature in either C major or A minor.
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#.
There are two sharps in b natural minor: F# and C#
D major and B minor.
C Major, zero flats and zero sharps. The minor scale with the same number of flats and sharps is A Minor.
There are no flats and no sharps in A minor
I don't know about the "in a row" part. Three sharps is the key signature for A major. Or, it's relative minor, F# minor.