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Cavaquinho Standard
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C sharp seventh (C#7) chord on cavaquinho

Notes
C♯E♯G♯B
Formula
135♭7

How to play C#7 on cavaquinho

  1. Shape 1 · fret 2

    no 5th (G♯)

    C#7 chord on cavaquinho, shape 1: from fret 2, notes C#, E#, B

  2. Shape 2 · fret 6 · barre

    C#7 chord on cavaquinho, shape 2: barre at fret 6, notes C#, E#, G#, B

  3. Shape 3 · fret 9 · barre

    C#7 chord on cavaquinho, shape 3: barre at fret 9, notes C#, E#, G#, B

  4. Shape 4 · fret 2

    no 5th (G♯)

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

  5. Shape 5 · fret 6 · barre

    C#7 chord on cavaquinho, shape 5: barre at fret 6, notes C#, E#, G#, B

  6. Shape 6 · fret 9

    C#7 chord on cavaquinho, shape 6: from fret 9, notes C#, E#, G#, B

Some shapes leave out: 5th (G♯). The caption of each one says what is missing. The 5th is the first to go: it barely changes the sound of the chord.

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 cavaquinho

On the cavaquinho a seventh chord fits whole on the 4 strings, one note on each, and that is how it accompanies in choro. Below are the positions with the root, the 3rd, the 5th and the 7th on the lowest string (in sixth chords the 6th does not go to the bass: that would rename the chord), whenever the position fits the hand.

  1. Root (C♯) in the bassroot position · C#7

    C sharp seventh, C#7, 11-10-9-9C♯79321C♯E♯G♯Bmetronotuner.com

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

    C sharp seventh, C#7/E#, 3606C♯7/E♯3134E♯C♯BG♯metronotuner.com

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

    C sharp seventh, C#7/G#, 6669C♯7/G♯6114G♯C♯E♯Bmetronotuner.com

  4. 5th (G♯) in the bass2nd inversion · C#7/G#

    C sharp seventh, C#7/G#, 6423C♯7/G♯24312G♯BC♯E♯metronotuner.com

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

    C sharp seventh, C#7/B, 9666C♯7/B641BC♯E♯G♯metronotuner.com

  6. 7th (B) in the bass3rd inversion · C#7/B

    C sharp seventh, C#7/B, 9-10-9-11C♯7/B91324BE♯G♯C♯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 cavaquinho?

C#7 (C sharp seventh) has 6 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 ukulele, with the fingerings for each instrument.

C#7 on other instruments

All cavaquinho chords