Sevenths
G♭ minor-major 7th chord
Mysterious and cinematic — think spy-movie themes.
- Notes
- G♭B𝄫D♭F
- Formula
- 1♭357
- Built from
- root · minor 3rd · perfect 5th · major 7th
How to play G♭m(maj7)
About the G♭ minor-major 7th chord
Playing it
On guitar, G♭m(maj7) is most often played as a barre chord across the 2nd fret (243222).
On piano, G♭m(maj7) has two black keys (G♭ and D♭) and two white keys.
On ukulele the usual G♭m(maj7) shape is 2524, using four fingers.
Related chords
Take away the root and the other three notes form B𝄫aug (B𝄫 D♭ F) — so you can think of G♭m(maj7) as B𝄫aug with G♭ added underneath.
Move a single note and G♭m(maj7) becomes a different chord: drop the F for G♭m, raise B𝄫 to B♭ for G♭maj7, lower F to F♭ for G♭m7 and swap F for E♭ for G♭m6.
Where you’ll hear it
Notice the B𝄫 in G♭m(maj7) (G♭ B𝄫 D♭ F): each note of the chord takes its own letter (G–B–D–F), so the minor 3rd has to be written B𝄫 rather than A — the same key on a piano, spelled to fit the chord.
