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Ukulele Standard
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C sharp seventh (C#7) chord on ukulele

Notes
C♯E♯G♯B
Formula
135♭7

How to play C#7 on ukulele

  1. Shape 1 · fret 1 · barre

    C#7 chord on ukulele, shape 1: barre at fret 1, notes C#, E#, G#, B

  2. Shape 2 · fret 4

    C#7 chord on ukulele, shape 2: from fret 4, notes C#, E#, G#, B

  3. Shape 3 · fret 6

    C#7 chord on ukulele, shape 3: from fret 6, notes C#, E#, G#, B

  4. Shape 4 · fret 9

    C#7 chord on ukulele, shape 4: from fret 9, notes C#, E#, G#, B

Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. x = do not play the string, o = open string. The coloured dot is the root (C sharp).

C#7 inversions on ukulele

The same C#7 with another chord note in the bass (the lowest note that sounds). The notes stay the same, but the colour changes, and the bass line can move by step from one chord to the next. In a chord symbol, the bass comes after the slash.

  1. 3rd (E♯) in the bass1st inversion · C#7/E#

    C sharp seventh, C#7/E#, 4544C♯7/E♯41423BE♯G♯C♯metronotuner.com

  2. 3rd (E♯) in the bass1st inversion · C#7/E#

    C sharp seventh, C#7/E#, 6542C♯7/E♯24321C♯E♯G♯Bmetronotuner.com

  3. 5th (G♯) in the bass2nd inversion · C#7/G#

    C sharp seventh, C#7/G#, 6878C♯7/G♯61324C♯G♯BE♯metronotuner.com

  4. 7th (B) in the bass3rd inversion · C#7/B

    C sharp seventh, C#7/B, 10-11-9-11C♯7/B92314E♯BC♯G♯metronotuner.com

  5. 7th (B) in the bass3rd inversion · C#7/B

    C sharp seventh, C#7/B, 10-11-9-8C♯7/B83421E♯BC♯E♯metronotuner.com

About the seventh chord

The dominant seventh chord carries a tension that "wants" to go somewhere: the third and the seventh form a tritone that resolves down a fifth (G7 → C). It is the V chord of any key, the sound of the blues (where every chord can take a seventh) and a staple of country and swing.

Notes and intervals of C#7

C#7 (C sharp seventh) is built from 4 notes. Each one fills a degree of the chord:

  • C♯ · 1 · root
  • E♯ · 3 · major third
  • G♯ · 5 · perfect fifth
  • B · ♭7 · minor seventh

Other C sharp chords

Seventh: other roots

Chords that go with C#7

C#7 is a dominant chord and usually resolves up a perfect fourth, to one of these chords:

Frequently asked questions

How do you play the C#7 chord on ukulele?

C#7 (C sharp seventh) has 4 fingerings on this page, from easiest to hardest. Each diagram shows the fingers, the open strings (o) and the strings you do not play (x), and you can hear every shape.

What notes are in C#7?

The notes of C#7 are C♯, E♯, G♯, B. The formula is 1 · 3 · 5 · ♭7: root, major third, perfect fifth, minor seventh.

What does C#7 mean?

C#7 is the chord symbol for C sharp seventh. The dominant seventh chord carries a tension that "wants" to go somewhere: the third and the seventh form a tritone that resolves down a fifth (G7 → C). It is the V chord of any key, the sound of the blues (where every chord can take a seventh) and a staple of country and swing.

Can I play C#7 on other instruments?

Yes. C#7 also has a page on guitar, on cavaquinho, with the fingerings for each instrument.

C#7 on other instruments

All ukulele chords