C7 Chord on Piano
The C7 chord contains C, E, G and B♭ — 4 notes. Every one is marked across three octaves of the keyboard below, labelled with note names and with interval numbers.
- Root
- Major 3rd
- Perfect 5th
- Minor 7th
| Degree | 1 | 3 | 5 | ♭7 |
|---|---|---|---|---|
| Note | C | E | G | B♭ |
| Interval | Root | Major 3rd | Perfect 5th | Minor 7th |
Note names
Interval numbers
Scales containing C Dominant 7th
| Major (Ionian) | F |
| Natural Minor (Aeolian) | D |
| Dorian | G |
| Phrygian | A |
| Lydian | B♭ |
| Mixolydian | C |
| Locrian | E |
| Harmonic Lydian (Lydian ♭6) | A♭ |
| Harmonic Minor | F |
| Melodic Minor | F G |
| Melodic Minor ♯4 | D♭ B♭ |
| Gypsy Minor (Hungarian Minor) | E |
| Dominant Pentatonic (Mixolydian Pentatonic) | C |
| Minor Sixth Pentatonic | G |
| Dominant Diminished (M2) | C E♭ F# A |
| Tcherepnin (M3) | D F# B♭ |
Circle of fifths
Frequently asked questions
What notes are in the C7 chord?
C, E, G and B♭. That is 4 notes.
How is the C7 chord built?
From a root of C: E is the major 3rd, G is the perfect 5th and B♭ is the minor 7th.
Which scales contain the C7 chord?
F Major (Ionian), D Natural Minor (Aeolian), G Dorian and A Phrygian, among others. Every note of the C7 chord is in those, so they can be played over it.
Which smaller chords are inside the C7 chord?
C Major, E Diminished, C Power (5) and B♭ Sus2 ♭5. Each uses only notes the C7 chord already contains.
Practice this on your own piano
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