Quick Answer & Harmonic Definition

To play the C Dominant 7th chord on guitar, find the notes C, E, G, A# across the fretboard. The root C typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this seventh chord shape.

Guitar Chord

C7 Guitar Chord

A major triad with a minor seventh. Creates harmonic tension that resolves to the tonic. Learn the C Dominant 7th chord on guitar with interactive fretboard, audio playback, and multiple voicings.

Notes
C – E – G – A#
Intervals
0 – 4 – 7 – 10
Type
seventh chord
C E G A#
E
A
D
G
B
e
3
5
7
9
12
4 notes · Standard (E A D G B E)

Playing the C7 Guitar Chord

The C7 chord is a dominant 7th chord built on the root C. It contains 4 notes: C, E, G, A#. On guitar, this chord can be played in multiple positions across the fretboard, from open shapes to barre chord voicings.

A major triad with a minor seventh. Creates harmonic tension that resolves to the tonic. For guitarists, mastering the C7 chord unlocks many songs in the key of C.

Recommended C7 Guitar Voicing

The interactive fretboard above shows a practical C7 voicing. The chord notes (C, E, G, A#) appear as highlighted positions. Tap any highlighted fret to hear that note, or click "Play C7" to hear the full chord.

Interval Structure of C7

Degree Interval Semitones Note in C
Root Root (R) 0 C
3rd Major 3rd 4 E
5th Perfect 5th 7 G
7th Minor 7th 10 A#

Common Progressions with C7 on Guitar

  • I–IV–V: C7 – F7 – G7 (foundation of blues and rock)
  • I–V–vi–IV: C7 – G – Am – F (modern pop staple)
  • I–vi–IV–V: C7 – Am – F – G (50s doo-wop)

Tips for Practicing C7 on Guitar

Start by finding the root note C on the 6th and 5th strings. Build the chord shape from there. Practice transitioning between C7 and nearby chords like F and G. Use slow, deliberate strums and check each string rings clearly.

Other C Guitar Chords

C
Major
Cm
Minor
Cmaj7
Major 7th
Cm7
Minor 7th
Cdim
Diminished
Caug
Augmented

Dominant 7th Chord in All 12 Keys

C7 C#7 D7 D#7 E7 F7 F#7 G7 G#7 A7 A#7 B7
Virtual Guitar
Interactive fretboard
C7 Piano
Piano chord diagram
C Scale
Notes that fit this chord
Songs
Find songs using C7

Knowledge Base & FAQs

C7 Guitar Chord — FAQ

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

How do I play the C7 chord on guitar?

To play the C Dominant 7th chord on guitar, find the notes C, E, G, A# across the fretboard.

The root C typically goes on the 6th or 5th string. Use the interactive fretboard above to see exact finger placement for this seventh chord shape.

What notes make up the C7 guitar chord?

The C Dominant 7th guitar chord contains 4 notes: C, E, G, A#.

These are derived from the dominant 7th interval formula applied to the root C.

What is the best guitar voicing for C7?

The most common guitar voicing for C7 uses a root position with C on the 6th or 5th string.

The exact frets depend on your preferred voicing — the interactive fretboard above shows a recommended open or barre position shape.

Is C7 a beginner-friendly guitar chord?

C7 has 4 notes, which may require more advanced finger stretching.

Start with the basic seventh shape and practice clean transitions.

What is a barre chord version of C7?

A barre chord version of C7 uses your index finger pressed across all strings at a specific fret, with the remaining fingers forming the chord shape.

The root C determines the barre position on the 6th or 5th string.

What are common chord progressions with C7 on guitar?

C7 is widely used in jazz ii–V–I turnarounds, blues progressions, and modal funk vamps.

How does C7 sound different on guitar vs piano?

The C7 chord contains the same notes (C, E, G, A#) on both instruments.

On guitar, the voicing depends on string selection and fret position, creating a different timbre. Guitar chords often include string-specific articulations like hammer-ons and pull-offs.

Can I play C7 as an open chord on guitar?

Open voicings of C7 require C to be playable within the first 3 frets.

If open shapes aren't available, use a barre chord voicing instead.

What is the difference between the C7 chord on guitar and ukulele?

The C7 chord contains the same notes (C, E, G, A#) on both instruments.

However, the guitar has 6 strings in EADGBE tuning while the ukulele has 4 strings in GCEA tuning, so the finger shapes are completely different.

How do I practice transitioning to and from C7 on guitar?

Practice moving between C7 and its neighboring chords in the key of C major: F and G.

Use a metronome at a slow tempo (60 BPM) and focus on clean, simultaneous finger placement.