guitar chord
G7
G1B3D5F♭7
Major triad, minor seventh. The chord that wants to resolve a fourth up.
Every fingering that fits a hand
320001
open
320031
moderate
323003
moderate · no 5
353003
moderate
320401
moderate
What is true of it
G7 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 320001: 3 fingers, held at the 1st fret.
1 of them use open strings, which is what makes a shape quiet to change to.
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
G7/B
x20001
G7/D
xx0001
G7/F
120001
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.