Learn › C Augmented Chord on Guitar (Caug)
New Released in April 2026
C Augmented Chord on Guitar (Caug)
The C augmented chord on guitar (Caug) uses the notes C, E, G#. It is an open chord: some strings ring without fingers. Strum from the 5th string down. Below: the diagram, which finger goes where, a second shape and the chords that go with it.
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- MIDI keyboard
- Digital or acoustic piano
- Guitar
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The C augmented guitar chord, finger by finger
Where each finger goes
- Little: 5th string (A), fret 3
- Ring: 4th string (D), fret 2
- Index: 3rd string (G), fret 1
- Middle: 2nd string (B), fret 1
Strings to play
x3211x: × = do not play, 0 = open string.
Which note each string plays
| 5th string (A) | fret 3: C |
|---|---|
| 4th string (D) | fret 2: E |
| 3rd string (G) | fret 1: G# |
| 2nd string (B) | fret 1: C |
Slide this shape along the neck: fret 1 = Bbaug, fret 2 = Baug, fret 4 = C#aug, fret 5 = Daug.
Learning Caug step by step
- Place the fingers one at a time, then strum and listen to each string.
- Take the hand off and put the whole shape back at once, ten times in a row.
- Switch between Caug and C for one minute, then try F.
Where Caug is used
A common move is C → Caug → F: the raised note in Caug pushes up into F.
Make Caug automatic
Practise Caug in ChordRunner: when its symbol appears, play C, E, G# and the microphone or MIDI keyboard confirms it. MIDI keyboard or microphone, both work.
Play the demoCommon questions
Is Caug easy on guitar?
Yes, it is one of the open chords beginners learn first. Start slowly, check that every string rings, then practise switching to C.
Which fingers do I use for Caug?
Little finger: 5th string (A), fret 3, ring finger: 4th string (D), fret 2, index finger: 3rd string (G), fret 1, middle finger: 2nd string (B), fret 1.
Will the game recognise my Caug?
If C, E, G# ring together, yes: ChordRunner listens through the microphone and also accepts a USB MIDI keyboard.
Your instrument is the controller.
ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.
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