Barre chord
fret 10, A shapex-10-12-11-11-10
Gmmaj7 is the G minor major 7 chord. Its notes are G, B♭, D and F♯. A minor triad with a major seventh, useful for descending minor lines.
x-10-12-11-11-10
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every G, B♭, D and F♯ on the first 12 frets. The filled dots are the root, G. Build your own shape from any nearby group.
Other G chords
Other minor major 7 chords