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C♯ Dominant 7th Chord (C♯7)

Notes: C♯, E♯, G♯, B. Tap any diagram to hear it.

C♯7
Notes
C♯E♯G♯B
Formula
1 – 3 – 5 – ♭7

C♯7 on guitar

Fret 4 · most common
x-4-6-4-6-4
Open position
x-4-3-1-0-1
Fret 9
9-11-9-10-9-9

Strings from low (left) to high (right). Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. × = don’t play, ○ = open string.

C♯7 on ukulele

Fret 1 · most common
1-1-1-2
Fret 4
4-5-4-4
Fret 9
10-11-9-11

C♯7 on piano

Other C♯ chords

C♯C♯mC♯maj7C♯m7C♯sus2C♯sus4C♯dimC♯augC♯6C♯m6C♯9C♯add9C♯7sus4C♯m7♭5C♯dim7

Dominant 7th chords in other keys

C7D7E♭7E7F7F♯7G7A♭7A7B♭7B7

About the C♯ Dominant 7th chord

Dominant seventh chords add tension that wants to resolve, usually to the chord a fifth below. They are essential in blues, jazz and rock. C♯7 is built from the root (C♯), major third (E♯), perfect fifth (G♯), minor seventh (B).

Frequently asked questions

What notes are in the C♯ Dominant 7th chord?

The C♯7 chord is made of C♯, E♯, G♯, B: the root, major third, perfect fifth, minor seventh.

How do you play C♯7 on guitar?

The most common fingering is x-4-6-4-6-4, from the low E string to the high E string (x = don’t play that string, 0 = open string). It uses a barre at fret 4.

How do you play C♯7 on piano?

Press C♯, E♯, G♯, B together. In root position the lowest note is C♯.