Key Signatures
Instead of writing a sharp sign before every F note on the staff, it is easier to write just one sharp sign after each clef. This means that all the F notes on the staff are played as F#, even though there is no sharp sign written before them. This is called a key signature.
C Major Key Signature
The C major scale contains no sharps or flats, therefore the key signature for the key of C major contains no sharps or flats.
G Major Key Signature
The G major scale contains one sharp, F#, therefore the key signature for the key of G major contains one sharp, F#.
The most common chords in the key of G major are:
The following songs All Through the Night and Lavender’s Blue are in the key of G major. The key signature tells you that all F notes on the music are played as F sharp (F#).
These songs contain all the common chords in the key of G major.
