C♯ sus4 on E9 pedal steel
C♯ sus4 = C♯ · F♯ · G♯ (root, 11th, 5th). 1052 playable voicings on the standard E9 copedent — the best 12 by neck position below.
Low neck (frets 0–7)
Fret 2 · openFret 5 · AA raises strings 5 & 10 a whole step (B→C♯)Fret 5 · CC raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)Fret 3 · RKRRKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)
Mid neck (frets 5–12)
Fret 10 · openFret 5 · A + LKRA raises strings 5 & 10 a whole step (B→C♯)LKR lowers strings 4 & 8 a half step (E→D♯)Fret 9 · BB raises strings 3 & 6 a half step (G♯→A)Fret 10 · RKRRKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)
High neck (frets 10–17)
Fret 10 · LKRLKR lowers strings 4 & 8 a half step (E→D♯)Fret 14 · openFret 12 · CC raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)Fret 12 · AA raises strings 5 & 10 a whole step (B→C♯)