C7aug Guitar Chord

How to play C7aug: an augmented dominant 7th built on C, with 4 ways to play it, the notes, the keys it belongs to, and songs that use it.

Chord Diagrams

XX
A common voicing
8XX
Voicing 2
10XX
Voicing 3
XX
Voicing 4

The first diagram is a common voicing: played at the first few frets. An X above a string means don't play it; an O means play it open.

How to play C7aug

Frets from the low E string to the high E string: x 3 2 3 x 4 (x = not played).

  1. Fret the D string at the 2nd fret.
  2. Add the A and G strings at the 3rd fret.
  3. Add the high E string at the 4th fret.
  4. Strum from the A string down, skipping the B string; the low E string stays silent.
C7aug and C7#5 are two names for the same chord, so the fingerings are identical. See C7#5 for the other name.

Notes & Intervals in C7aug

NoteCEG#Bb
IntervalR3#5b7

C7aug is an augmented dominant 7th with C as its root. The full theoretical spelling is C, E, G#, Bb. This voicing sounds every chord tone.

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Keys That Use C7aug

C7aug is a diatonic chord (built from the key's own notes) in 0 major keys and 1 minor key. The roman numeral is the chord's place in that key; tap a key for all of its chords.

Use This Chord

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Questions About C7aug

What notes are in the C7aug chord?

C7aug is spelled C, E, G#, Bb: the root, 3rd, sharp 5th, flat 7th. The common guitar voicing sounds every one of them.

How do you play C7aug on guitar?

Frets from the low E string to the high E string: x 3 2 3 x 4 (x means the string is not played). Fret the D string at the 2nd fret. Add the A and G strings at the 3rd fret. Add the high E string at the 4th fret. Strum from the A string down, skipping the B string; the low E string stays silent.

What key is the C7aug chord in?

C7aug belongs to one key: F minor (the V+, from the harmonic minor).

Related Chords

Other augmented dominant 7th chords

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