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Dominant familyV7 in F major

C dominant seventh chord

C7

C dominant seventh

Piano root position

  • Root
  • 3
  • 5
  • ♭7

Guitar standard tuning

Open chord

Uses open strings, no barre.

E×ADGBe12345CEB♭C

Finger: 1 index, 2 middle, 3 ring, 4 little

Notation treble clef

𝄞♭

Intervals

12 semitones
  1. C1
  2. ♭2
  3. 2
  4. ♭3
  5. E3
  6. 4
  7. ♭5
  8. G5
  9. ♯5
  10. 6
  11. B♭♭7
  12. 7
  • C Root
  • E Major 3rd
  • G Perfect 5th
  • B♭ Minor 7th

About this chord

What is a C dominant seventh chord?

C7 is built from 4 notes: C (the root), E (the 3), G (the 5), B♭ (the ♭7). Bluesy and restless: the tritone inside it wants to resolve.

Notes
C · E · G · B♭
Formula
1 · 3 · 5 · ♭7
Also written
Cdom7
Found in
V7 in F major · VII7 in D minor · V7 in F harmonic minor

Scales that contain C7

Neighbours

Chords close to C7

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All 348 chords

Every chord type on every root, each with its own page.

C

D♭

D

E♭

E

F

G♭

G

A♭

A

B♭

B