Banjo Aaug chord (Open G)A augmented on the 5-string banjo: 3 2 2 3, and 3 more shapes

Frets, string 4 to string 1: 3 2 2 3 (first position)

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

Sounds: E♯ A C♯ E♯  ·  Aaug is A, C♯, E♯ (1 · 3 · ♯5)

The 5th string: the short g adds the ♭7 over Aaug, a colour rather than a clash.

With a capo: on the 2nd fret it’s 1 0 0 1 (frets counted from the capo), an open Gaug shape. Spike the 5th string at the 7th fret to keep it in tune with the capo.

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