E Minor 7th
m7
0 - 3 - 7 - 10Minor + minor 7th
About E Minor 7th
E minor seventh is the easiest four-note chord on the guitar: two fingers, or one, or none at all depending on the voicing. Its notes — E, G, B, D — are so close to the open strings that a strummed E minor with an extra open D string is already the chord.
The notes
E, G, B, D. Compare with E minor: only the D is added, and the guitar has one open. That is why the chord costs almost nothing to play and why it appears wherever a static minor needs air.
The seventh softens the chord rather than sharpening it. Unlike a dominant seventh, whose tritone demands resolution, a minor seventh is stable — it can hold for eight bars without asking to go anywhere.
Voicings
The two-finger version keeps the low E and A fretted at the second and lets everything else ring. The one-finger version drops even the A. Both are correct; the second is thinner and more open, and it is what fingerstyle players usually mean.
Moved to the seventh fret as a barre with the root on the A string, the same shape becomes the standard movable minor seventh, and that fingering is the one jazz uses.
Where it shows up
As the ii of D major and the vi of G. In jazz the ii chord is where a progression starts, so Em7–A7–D is a complete cadence in the key most guitar tunes sit in.
In pop and folk it more often replaces plain E minor for texture: the added D fills the chord out without changing its function, which is why so many acoustic songs use it as a default.