Bbaug chord
Bb augmented
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>G
Gb
G
Ab
A
Bb1
B
C
Db
D
Eb
E
F
Gb
G
Bb
C
C
Db
D3
Eb
E
F
Gb
G
Ab
A
Bb
B
C
D
E
Eb
E
F
Gb#5
G
Ab
A
Bb
B
C
Db
D
Eb
E
Gb
A
Ab
A
Bb1
B
C
Db
D
Eb
E
F
Gb
G
Ab
A
Bb
3
5
7
10
The Bbaug chord has the formula 1, 3, #5 with notes Bb, D, Gb
The augmented chord is a notoriously dissonant chord because its notes do not fit in either the major or minor scale. In jazz, it is most commonly used as a passing chord and can also be used as a pivot chord to modulate the key.