Space plays and stops
- Left hand
- C#2
- Right hand
- F#4B4D#5
- Family
- Rootless 3-Note Shells
The Shell I voicing of C#9sus4 stacks F#, B and D# from the bottom up: the 4th, minor 7th and 9th of the chord. It leaves out the root, C#, for the left hand or the bass player to take.
It's one of the Rootless 3-Note Shells voicings: three-note rootless voicings: the 3rd and 7th with one more tone, played over the root. The other for C#9sus4 is Shell II.