About the Ddim Baritone chord
Play Ddim on Baritone ukulele with the 0 1 3 1 shape in DGBE tuning.
Place your index finger on the 1st fret of the G string, your middle finger on the 1st fret of the E string, and your pinky finger on the 3rd fret of the B string. Leave the D string open. Strum all four 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
D
Quality
Diminished
Notes
D · F · Ab
How the Ddim chord works
D
Root (1)
The home note. It gives the chord its name.
F
Minor third (♭3)
The defining minor interval above the root.
Ab
Diminished fifth (♭5)
A lowered fifth that adds harmonic tension.