Voicing of C# Diminished 7

Rooted I

Back to C#dim7

Space plays and stops
Left hand
C#3E3G3Bb3
Family
4-Note Rooted

The Rooted I voicing of C#dim7 stacks C#, E, G and Bb from the bottom up: the root, minor 3rd, flat 5th and diminished 7th of the chord.

It's one of the 4-Note Rooted voicings: four-note voicings with the root on the bottom or inside, in the left hand. The others for C#dim7 are Rooted II, Rooted III and Rooted IV.