The C-sharp dominant seventh suspended fourth chord (abbreviated "C#7sus4 chord") is a four-note chord consisting of the notes C♯, F♯, G♯, and B. The chord is formed by adding a minor seventh to a C-sharp suspended fourth chord.
C-sharp dominant seventh suspended fourth chord
C♯ F♯ G♯ B
1 4 5 ♭7
Tetrad (four-note chord)