guitar chord
G♭7
Major triad, minor seventh. The chord that wants to resolve a fourth up.
Written the other way round it is F♯7 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
242320
moderate · barre
242322
moderate · barre
xx4320
easy
244320
hard · barre
242350
hard · barre
What is true of it
G♭7 is G♭, B♭, D♭ and F♭ — 1, 3, 5 and b7 counted from G♭.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is 242320: 3 fingers, one of them barring the 2nd fret, held at the 2nd fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
4 of the 5 need a barre.
Where its notes are on the neck
The brass dots are G♭, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
G♭7/B♭
x14320
G♭7/D♭
x44320
G♭7/F♭
044320
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.