Banjo B♭aug chord (Open G)B♭ augmented on the 5-string banjo: 4 3 3 4, and 4 more shapes

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

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

Sounds: F♯ B♭ D F♯  ·  B♭aug is B♭, D, F♯ (1 · 3 · ♯5)

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

With a capo: on the 3rd fret it’s 1 0 0 1 (frets counted from the capo), an open Gaug shape. Spike the 5th string at the 8th fret to keep it in tune with the capo.

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