A♯aug

A♯1C𝄪3E𝄪♯5

Two major thirds stacked. Symmetrical: every note can be heard as the root.

Written the other way round it is B♭aug — the same twelve keys on a piano, a different piece of notation.

on guitar on piano the scale

Every fingering that fits a hand

Fig. 2

322x

easy

Fig. 3

3221

moderate

Fig. 4

3225

moderate

Fig. 5

3665

hard

Fig. 6

xaa9

easy

What is true of it

A♯aug is A♯, C𝄪 and E𝄪 — 1, 3 and #5 counted from A♯.

C𝄪 and E𝄪 are double sharps, and they have to be: every letter from A♯ upwards is used once, so the 3 cannot be written any other way.

The easiest of the 5 fingerings below is 322x: 3 fingers, held at the 2nd 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

Fig. 7 — first 12 frets

The brass dots are A♯, the root. Everything else is a chord tone with its degree printed in it.

With a different note underneath

first inversion

A♯aug/C𝄪

x221

second inversion

A♯aug/E𝄪

x665

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.

A♯ in other shapes

A♯major A♯mminor A♯dimdiminished A♯5power chord A♯sus2suspended second A♯sus4suspended fourth

Caug C♯aug D♭aug Daug D♯aug E♭aug Eaug Faug all 374