About the Cdim Baritone chord
Play Cdim on Baritone ukulele with the 1 x 1 2 shape in DGBE tuning.
Place your index finger on the 1st fret of the D string, your middle finger on the 1st fret of the B string, and your ring finger on the 2nd fret of the E string. Mute the G string. Strum the other three strings and check that each one rings cleanly.
Read the frets across D, G, B and E. A 0 means open and x means mute. These fingerings are for Baritone strings. A Standard gCEA chart uses different shapes for the same chord names.
Root
C
Quality
Diminished
Notes
C · Eb · Gb
How the Cdim chord works
C
Root (1)
The home note. It gives the chord its name.
Eb
Minor third (♭3)
The defining minor interval above the root.
Gb
Diminished fifth (♭5)
A lowered fifth that adds harmonic tension.