Which notes are in the C7 chord?

C7 contains the notes C, E, G and A#. Relative to the root these are the degrees 1 – 3 – 5 – ♭7.

How many ways can you play C7?

Minory lists a single ukulele fingering for C7.

Is the C7 chord hard to play?

Not really. The open position of C7 uses open strings and needs no barre, which makes it approachable for beginners.

C dominant 7th · Ukulele

C7 Chord on Ukulele

The C7 chord (C dominant 7th) is built from the notes C, E, G and A#. The ukulele fingering for it is shown below.

Chord diagrams

C7open position

Fingering

string 4 (G): played open
string 3 (C): played open
string 2 (E): played open
string 1 (A): fret 1 — index finger

Notes in this chord

C
E
G
A♯

Degrees: 1 – 3 – 5 – ♭7

How to play

C7 can be played with open strings on ukulele, which makes it an accessible shape for beginners. Strings marked ○ ring open, while strings marked ✕ are muted.

Theory behind the chord

Dominant seventh chords add a minor seventh on top of a major triad. The tension between the third and the seventh is what makes them pull towards the chord a fourth above — the engine of blues and jazz turnarounds. On C7 this structure sits on the root C, so the degrees 1 – 3 – 5 – ♭7 map onto C, E, G and A#.

Frequently asked questions

Which notes are in the C7 chord?: C7 contains the notes C, E, G and A#. Relative to the root these are the degrees 1 – 3 – 5 – ♭7.
How many ways can you play C7?: Minory lists a single ukulele fingering for C7.
Is the C7 chord hard to play?: Not really. The open position of C7 uses open strings and needs no barre, which makes it approachable for beginners.

Practise C7 on your phone

Minory bundles the full chord library with a tuner, metronome and repertoire notebook — and it all works offline.