Caug chord
C augmented
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ukulele fretboard
3
5
7
10
The Caug chord has the formula 1, 3, #5 with notes C, E, G#
The augmented chord is a notoriously dissonant chord because its notes do not fit in either a 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.