Gmaj7 chord inversions
Gmaj7/B, Gmaj7/D and Gmaj7/F# are the first, second and third inversions of the Gmaj7. This means that the bass tone is shifting from G to B, D or F sharp.
Theory and information
All these chords consist of the notes G, B, D, F#. The difference is that the order of notes shifts. G is the bass note in the first inversion, D is the bass note in the second inversion and F# is the bass note in the third inversion.
One of many options for Gmaj7/B is X20032. An alternative for Gmaj7/D is X54433. An alternative for Gmaj7/F# is 220003.
Alternative chord names
Gmaj7/F# is identical with Gmaj7/Gb and G/F#.