guitar chord
B♭aug
Two major thirds stacked. Symmetrical: every note can be heard as the root.
Written the other way round it is A♯aug — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
x10332
moderate
x1433x
hard
6543xx
hard
xx8776
hard
6547xx
hard
What is true of it
B♭aug is B♭, D and F♯ — 1, 3 and #5 counted from B♭.
The easiest of the 5 fingerings below is x10332: 4 fingers, held at the 1st fret.
None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.
1 string stays silent.
Where its notes are on the neck
The brass dots are B♭, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
B♭aug/D
xx0332
B♭aug/F♯
21033x
An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.