B♭aug banjo chord

How to play B♭aug on banjo

The most common way, the first shape above: your index finger on the A string at the 1st fret. Let the short F♯, low D, F♯ and high D strings ring open.

From the short F♯ string 0 0 0 1 0 (x: not played, 0: open)

What notes are in B♭aug?

B♭aug, B♭ augmented, is B♭, D and F♯: the root (B♭), the major third (D) and the augmented fifth (F♯). Its formula is 1 3 ♯5.

Why do B♭aug and two other augmented chords have the same notes?

An augmented chord is two major thirds stacked, B♭, D and F♯, and a third more brings you back to B♭. So B♭aug has the same notes as the augmented chords on D and F♯.