G minor-major 7th chord

Playing it

On guitar, Gm(maj7) has an open-position shape, 310032, using four fingers alongside the open strings.

On piano, Gm(maj7) has two black keys (B♭ and F♯) and two white keys.

On ukulele the usual Gm(maj7) shape is 0221, using three fingers.

Related chords

Take away the root and the other three notes form B♭aug (B♭ D F♯) — so you can think of Gm(maj7) as B♭aug with G added underneath.

Move a single note and Gm(maj7) becomes a different chord: drop the F♯ for Gm, raise B♭ to B for Gmaj7, lower F♯ to F for Gm7 and swap F♯ for E for Gm6.