G major (or the key of G) is a major scale based on G, with the pitches G, A, B, C, D, E,F, and G. Its key signature has one sharp, F.

G major
Relative key E minor
Parallel key G minor
Dominant key
Notes in this scale
G, A, B, C, D, E, F#, G

Its relative minor is E minor, and its parallel minor is G minor.