F minor-major 7th chord

Playing it

On guitar, Fm(maj7) has an open-position shape, 132110, using three fingers alongside the open strings.

On piano, Fm(maj7) has one black key (A♭) and three white keys.

On ukulele the usual Fm(maj7) shape is 1413, using four fingers.

Related chords

Take away the root and the other three notes form A♭aug (A♭ C E) — so you can think of Fm(maj7) as A♭aug with F added underneath.

Move a single note and Fm(maj7) becomes a different chord: drop the E for Fm, raise A♭ to A for Fmaj7, lower E to E♭ for Fm7 and swap E for D for Fm6.