G major (F♯)
D major (F♯ and C♯)
A major (F♯, C♯ and G♯)
E major (F♯, C♯, G♯, and D♯)
B major (F♯, C♯, G♯, D♯ and A♯)
F♯ major (F♯, C♯, G♯, D♯, A♯ and E♯)
C♯ major (F♯, C♯, G♯, D♯, A♯, E♯ and B♯)
Four key signatures have G sharp and E sharp in them: F sharp Major, D sharp minor, C sharp Major and A sharp minor.
G Major or e minor. The sharp would be F sharp.
No key signatures contain only those three sharps. With the A-sharp, it could be the keys of B major, F-sharp major, or C-sharp major (or any of their relative minor keys).
Both G major and e minor have F# in their key signatures. For e minor, the 7th note (D) is raised (to D#) when it is in harmonic form.
F major, B-flat major.
Four key signatures have G sharp and E sharp in them: F sharp Major, D sharp minor, C sharp Major and A sharp minor.
G Major or e minor. The sharp would be F sharp.
No key signatures contain only those three sharps. With the A-sharp, it could be the keys of B major, F-sharp major, or C-sharp major (or any of their relative minor keys).
To find sharp key signatures, look at the last sharp in the key signature and go up one half step. This note is the leading tone and indicates the key of the music.
D major or it's relative minor (B minor). I memorized the "Circle of 5th's" to help me remember key signatures. There are many key signatures with F and C sharps. D, A, E, B, F#, C# and their relative minor scales (Bm, F#m, C#m, G#m, D#m, A#m).
There are 15 major key signatures in music theory.
There are several key signatures that contain sharps.
Key signatures in music indicate the key of a piece and the sharps or flats that are consistently used throughout. To identify the key signature, look at the sharps or flats at the beginning of the staff. The number of sharps or flats can help determine the key. For example, one sharp is the key of G major, while two flats indicate the key of Bb major.
Both G major and e minor have F# in their key signatures. For e minor, the 7th note (D) is raised (to D#) when it is in harmonic form.
To find the key signature of "do" in music, look at the last sharp in the key signature. The note one half step above that sharp is "do."
The keys of Eb Major and c minor have three flats in their key signatures: Bb, Eb, and Ab.
There are three keys which are called "enharmonic keys", the three enharmonically equivalent key signatures are B major/C-flat major, F-sharp major/G-flat major, and C-sharp major/D-flat major and likewise their relative minors. B/C-flat, F-sharp/G-flat and C-sharp/D-flat all share the same pitch but are just notated in two different ways. In an other way the keys mentioned above are just one key going by two different names but they use different accidentals and are written on different lines/spaces.