About the C#7 Baritone chord
Play C#7 on Baritone ukulele with the 3 4 2 4 shape in DGBE tuning.
Place your index finger on the 2nd fret of the B string, your middle finger on the 3rd fret of the D string, your ring finger on the 4th fret of the G string, and your pinky finger on the 4th fret of the E 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
C#
Quality
Dominant 7th
Notes
C# · E# · G# · B
How the C#7 chord works
Root (1)
The home note. It gives the chord its name.
Major third (3)
The major-third interval that establishes the chord's major base.
Perfect fifth (5)
Adds strength and stability.
Minor seventh (♭7)
Adds the defining minor-seventh color.