MetronoTuner
Cavaquinho Standard
en

Install it as an app

It opens full screen, like an app, and works offline.

  1. Tap Share in the browser bar.
  2. Scroll down and tap “Add to Home Screen” .
  3. Tap “Add”. The icon shows up on your home screen.

C sharp seventh flat nine (C#7(b9)) chord on cavaquinho

Notes
C♯E♯G♯BD
Formula
135♭7♭9

How to play C#7(b9) on cavaquinho

  1. Shape 1 · 1st position

    no 5th (G♯)

    C#7(b9) chord on cavaquinho, shape 1: first position, with open strings, notes C#, E#, B, D

  2. Shape 2 · fret 10

    no 5th (G♯)

    C#7(b9) chord on cavaquinho, shape 2: from fret 10, notes C#, E#, B, D

  3. Shape 3 · 1st position

    no 5th (G♯)

    C#7(b9) chord on cavaquinho, shape 3: first position, with open strings, notes C#, E#, B, D

  4. Shape 4 · fret 10

    no 5th (G♯)

    C#7(b9) chord on cavaquinho, shape 4: from fret 10, notes C#, E#, B, D

The C#7(b9) has 5 notes, and on cavaquinho only 4 fit at a time. The shapes on this page leave out: 5th (G♯). That is standard practice: the 5th goes first (it barely changes the sound) and, if a string is still missing, the root, which the bass player usually covers.

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(b9) inversions on cavaquinho

The same C#7(b9) 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(b9)/E#

    C sharp seventh flat nine, C#7(b9)/E#, 3420C♯7(♭9)/E♯231E♯BC♯Dmetronotuner.com

  2. 3rd (E♯) in the bass1st inversion · C#7(b9)/E#

    C sharp seventh flat nine, C#7(b9)/E#, 3600C♯7(♭9)/E♯314E♯C♯BDmetronotuner.com

  3. 7th (B) in the bass3rd inversion · C#7(b9)/B

    C sharp seventh flat nine, C#7(b9)/B, 9660C♯7(♭9)/B6412BC♯E♯Dmetronotuner.com

  4. 7th (B) in the bass3rd inversion · C#7(b9)/B

    C sharp seventh flat nine, C#7(b9)/B, 11-10-0-0C♯7(♭9)/B1021C♯E♯BDmetronotuner.com

About the seventh flat nine chord

A dominant chord with a flat ninth: maximum tension, with a Spanish and choro flavour. It is the typical V7 that resolves to a minor chord (E7♭9 → Am) and one of the most characteristic sounds of choro, flamenco and jazz.

Notes and intervals of C#7(b9)

C#7(b9) (C sharp seventh flat nine) is built from 5 notes. Each one fills a degree of the chord:

  • C♯ · 1 · root
  • E♯ · 3 · major third
  • G♯ · 5 · perfect fifth
  • B · ♭7 · minor seventh
  • D · ♭9 · flat ninth

Other C sharp chords

Seventh flat nine: other roots

Frequently asked questions

How do you play the C#7(b9) chord on cavaquinho?

C#7(b9) (C sharp seventh flat nine) 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(b9)?

The notes of C#7(b9) are C♯, E♯, G♯, B, D. The formula is 1 · 3 · 5 · ♭7 · ♭9: root, major third, perfect fifth, minor seventh, flat ninth.

What does C#7(b9) mean?

C#7(b9) is the chord symbol for C sharp seventh flat nine. A dominant chord with a flat ninth: maximum tension, with a Spanish and choro flavour. It is the typical V7 that resolves to a minor chord (E7♭9 → Am) and one of the most characteristic sounds of choro, flamenco and jazz.

Can I play C#7(b9) on other instruments?

Yes. C#7(b9) also has a page on guitar, on ukulele, with the fingerings for each instrument.

C#7(b9) on other instruments

All cavaquinho chords