F add9 on E9 pedal steel
F add9 = F · G · A · C (root, 9th, 3rd, 5th). 823 playable voicings on the standard E9 copedent — the best 12 by neck position below.
Low neck (frets 0–7)
Fret 3 · openFret 1 · openFret 3 · BB raises strings 3 & 6 a half step (G♯→A)Fret 4 · A + LKLA raises strings 5 & 10 a whole step (B→C♯)LKL raises strings 4 & 8 a half step (E→F)
Mid neck (frets 5–12)
Fret 6 · LKR + RKLLKR lowers strings 4 & 8 a half step (E→D♯)RKL lowers string 2 a half step (D♯→D); lowers string 9 a half step (D→C♯)Fret 11 · RKRRKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)Fret 6 · CC raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)Fret 5 · A + RKRA raises strings 5 & 10 a whole step (B→C♯)RKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)
High neck (frets 10–17)
Fret 13 · openFret 15 · openFret 15 · BB raises strings 3 & 6 a half step (G♯→A)Fret 15 · B + RKLB raises strings 3 & 6 a half step (G♯→A)RKL lowers string 2 a half step (D♯→D); lowers string 9 a half step (D→C♯)