Ukulele chord · Sevenths

C diminished 7th chord on ukulele

1B𝄫3E♭2G♭4C

2323 · 2nd fret
All 6 shapes, tab & fingering ↓

6 ways to play Cdim7 on ukulele, with finger positions, tabs and step-by-step instructions.

Symmetrical and very tense — every note is a minor 3rd apart.

Cdim7 is the vii°7 chord in C♯ minor.

Notes
CE♭G♭B𝄫
Formula
1♭3♭5𝄫7
Built from
root · minor 3rd · diminished 5th · diminished 7th

Ukulele

Standard G C E A tuning · 6 voicings · G string on the left

1B𝄫3E♭2G♭4C

How to play it · 2nd fret

  1. 4th string (G): 2nd fret, index finger (1) B𝄫
  2. 3rd string (C): 3rd fret, ring finger (3) E♭
  3. 2nd string (E): 2nd fret, middle finger (2) G♭
  4. 1st string (A): 3rd fret, pinky finger (4) C

Tablature

A|--3---|
E|--2---|
C|--3---|
G|--2---|

Top line is the A string. x = don’t play, 0 = open string.

Every Cdim7 note on the ukulele neck

Bright dots are the selected voicing — the rest are other places you can find the same chord tones.

GCEA123456789101112𝄫7R♭3♭5R♭3♭5𝄫7R♭5𝄫7R♭3𝄫7R♭3♭5𝄫7

Tips for playing Cdim7 on ukulele

On ukulele the usual Cdim7 shape is 2323, using four fingers.

Notice the B𝄫 in Cdim7 (C E♭ G♭ B𝄫): each note of the chord takes its own letter (C–E–G–B), so the diminished 7th has to be written B𝄫 rather than A — the same key on a piano, spelled to fit the chord.

Cdim7 ukulele chord diagram (C diminished 7th)
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