Question
What is the name of this key signature?
Responses
C sharp major
C sharp major
b minor
b minor
e minor
e minor
G major
G major
Two-sharp key signature
The name of this key signature is D major or B minor.
The name of this key signature is "Two-sharp key signature."
To determine the name of a key signature with two sharps, we need to identify which two sharps are being used. The sharps in a key signature always appear in a specific order: F, C, G, D, A, E, B.
Let's look at the two sharps in the given responses: C sharp major, b minor, e minor, and G major.
The first sharp is C sharp. We locate C sharp in the order of sharps (F, C, G, D, A, E, B). C sharp is the third sharp, so it tells us that the key signature includes at least three sharps.
The second sharp is not mentioned in any of the responses, so we continue searching. Going in order, the next sharp is G.
Now, both C sharp and G sharps are present in G major, which is the only response that matches the given criteria. Therefore, the two-sharp key signature is G major.