guitar chord
D7
Major triad, minor seventh. The chord that wants to resolve a fourth up.
Every fingering that fits a hand
xx0212
open
x50532
hard · no 5
acabaa
moderate · barre
xx0532
easy · no 5
x57575
moderate · barre
What is true of it
D7 is D, F♯, A and C — 1, 3, 5 and b7 counted from D.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is xx0212: 3 fingers, held at the 1st fret.
1 of them use open strings, which is what makes a shape quiet to change to.
2 of the 5 need a barre.
2 strings stay silent.
Where its notes are on the neck
The brass dots are D, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
D7/F♯
200212
D7/A
x00212
D7/C
x30232
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.