G chord inversions
Try in a chord progression
C - G/B - Am
Em - G/D - D
Theory of the G/B and G/D chords
Both chords consist of the notes G, B, D. The difference is that the order of notes shifts. B is the bass note in the first inversion and D is the bass note in the second inversion.
A comparison between the main G major and the two inversions can be seen below.
Chord constructionG G - B - D - G - B - G
G/B x - B - D - G - B - G
G/D x - x - D - B - D - G
Guitar versions of the chord
Notes in chordG G - B - D
G/B B - D - G
G/D D - G - B
Only the order of notes differs