G major has one sharp in its key signature.
According to the reference material, the key of G Major has one sharp, which has a numeric value of 1. In contrast, A Major has three sharps. This difference highlights how each major key is defined by a unique set of sharps or flats.
Here's a brief overview of key signatures:
- Key Signature: A set of sharps or flats placed at the beginning of a musical staff to indicate which notes are to be consistently raised or lowered throughout the piece.
- Sharps: Raise the pitch of a note by a half step.
- Flats: Lower the pitch of a note by a half step.
The key of G major's single sharp affects the note F, raising it to F♯ (F sharp).