About the F#dim Baritone chord
Play F#dim on Baritone ukulele with the 4 2 1 2 shape in DGBE tuning.
Place your index finger on the 1st fret of the B string, your middle finger on the 2nd fret of the G string, your ring finger on the 2nd fret of the E string, and your pinky finger on the 4th fret of the D string. 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
F#
Quality
Diminished
Notes
F# · A · C
How the F#dim chord works
F#
Root (1)
The home note. It gives the chord its name.
A
Minor third (♭3)
The defining minor interval above the root.
C
Diminished fifth (♭5)
A lowered fifth that adds harmonic tension.