B 7♭5 on E9 pedal steel
B 7♭5 = B · D♯ · F · A (root, 3rd, ♭5/♯11, 7th). 435 playable voicings on the standard E9 copedent — the best 12 by neck position below.
Low neck (frets 0–7)
Fret 6 · B + LKLB raises strings 3 & 6 a half step (G♯→A)LKL raises strings 4 & 8 a half step (E→F)Fret 0 · B + LKLB raises strings 3 & 6 a half step (G♯→A)LKL raises strings 4 & 8 a half step (E→F)Fret 3 · A + LKR + RKRA raises strings 5 & 10 a whole step (B→C♯)LKR lowers strings 4 & 8 a half step (E→D♯)RKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)Fret 2 · B + C + LKLB raises strings 3 & 6 a half step (G♯→A)C raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)LKL raises strings 4 & 8 a half step (E→F)
Mid neck (frets 5–12)
Fret 8 · B + C + LKLB raises strings 3 & 6 a half step (G♯→A)C raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)LKL raises strings 4 & 8 a half step (E→F)Fret 9 · A + LKR + RKRA raises strings 5 & 10 a whole step (B→C♯)LKR lowers strings 4 & 8 a half step (E→D♯)RKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)Fret 12 · B + LKLB raises strings 3 & 6 a half step (G♯→A)LKL raises strings 4 & 8 a half step (E→F)Fret 7 · RKRRKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)
High neck (frets 10–17)
Fret 14 · B + C + LKLB raises strings 3 & 6 a half step (G♯→A)C raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)LKL raises strings 4 & 8 a half step (E→F)Fret 15 · A + LKR + RKRA raises strings 5 & 10 a whole step (B→C♯)LKR lowers strings 4 & 8 a half step (E→D♯)RKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)Fret 10 · C + LKLC raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)LKL raises strings 4 & 8 a half step (E→F)Fret 13 · RKRRKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)