Banjo E7 chord (Open G)E seventh on the 5-string banjo: 2 1 0 0, and 6 more shapes

Frets, string 4 to string 1: 2 1 0 0 (open position)

1. String 4 (D): 2nd fret, middle finger, E
2. String 3 (G): 1st fret, index finger, G♯
3. String 2 (B): open, B
4. String 1 (D): open, D
5. String 5, the short g: open, G, not in the chord

Sounds: E G♯ B D  ·  E7 is E, G♯, B, D (1 · 3 · 5 · ♭7)

The 5th string: the short g rubs against the G♯ in this shape, a semitone away: some players let it ring, some skip it.

Up the neck: E7 shape: 2 1 3 2 (at the nut); Barre 7 shape: 9 9 9 12 (9fr); F7 shape: 14 13 12 12 (12fr). Slide a shape up or down to play another chord of its kind.

Open G tuning: gDGBD, the short 5th string first, then strings 4 to 1.