Practice Your C7(#5) Guitar Chord with Our Interactive Tool
C augmented seventh (written C7#5) takes its name from its interval stack, the root, major third, raised fifth and minor seventh, which gives the notes C, E, G# and Bb.
All 4 voicings are fretted and none rings an open string; 3 are barre shapes. As a dominant-type chord it tends to sound as if it wants to resolve, most naturally to a chord a fifth below.
A scale that covers every chord tone is the C whole-tone scale, which is where to start when you improvise. The player at the top adds a drum loop with a tempo you set, which is a simple way to play along and rehearse chord changes.
C dominant 7th with sharp 5th guitar chord is also written as C7(#5), C7#5, C7+5 or Caug7.
Notes that compose the C 7(#5) chord:
Formula of the Dominant Seventh Sharp Fifth chord:
Formula: 1 3 #5 b7
C 7(#5) Chord Interactive Fretboard
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C 7(#5) Guitar Chord Diagrams
Position 1 Barre Movable
Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 1 of the A, G and B strings at the same time
- Place your middle finger (2) on the fret 2 of the D string
Position 2 Barre Movable
Finger Positions
- Mute the low E string
- Place your index finger (1) on the fret 3 of the A and G strings at the same time
- Place your middle finger (2) on the fret 4 of the high E string
- Place your ring finger (3) on the fret 5 of the B string
- Place your pinky finger (4) on the fret 6 of the D string
Position 3 Barre Movable
Finger Positions
- Mute the A string
- Place your index finger (1) on the fret 8 of the low E, D and high E strings at the same time
- Place your middle finger (2) on the fret 9 of the G string
- Place your ring finger (3) on the fret 9 of the B string
Position 4 Movable
Finger Positions
- Mute the A string
- Mute the high E string
- Place your index finger (1) on the fret 8 of the low E string
- Place your middle finger (2) on the fret 8 of the D string
- Place your ring finger (3) on the fret 9 of the G string
- Place your pinky finger (4) on the fret 9 of the B string
Find more shapes in our all guitar chords online library. If you
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Created by
Giancarlo is a musician (teaching guitar since 2000), software engineer, AI consultant and published researcher
FAQ
What notes are in C7#5?
C7#5 is spelled C, E, G# and Bb. Those are the root, a major third, a raised fifth and a minor seventh. The chord is also written Caug7.
How does C7#5 differ from C7?
The fifth is raised a semitone. C7 has G, while C7#5 has G#. The major third E and minor seventh Bb stay the same.
What does C augmented seventh resolve to?
As a dominant chord, C7#5 tends to move down a fifth, to F. The raised fifth adds extra tension to that pull.
Which scale covers C augmented seventh?
The C whole-tone scale, C, D, E, F#, G#, Bb, contains all four chord tones. Every note in it agrees with C7#5.
How many C7#5 voicings are there on guitar?
There are 4 voicings, 3 of them using a barre. None uses an open string. They run from fret 1 to fret 9.
