D 6 on E9 pedal steel
D 6 = D · F♯ · A · B (root, 3rd, 5th, 6th/13th). 1506 playable voicings on the standard E9 copedent — the best 12 by neck position below.
Low neck (frets 0–7)
Fret 3 · LKRLKR lowers strings 4 & 8 a half step (E→D♯)Fret 5 · A + BA raises strings 5 & 10 a whole step (B→C♯)B raises strings 3 & 6 a half step (G♯→A)Fret 5 · B + CB 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♯)Fret 5 · 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♯)
Mid neck (frets 5–12)
Fret 6 · C + RKRC raises string 4 a whole step (E→F♯); raises string 5 a whole step (B→C♯)RKR lowers string 4 a half step (E→D♯); lowers string 5 a half step (B→A♯)Fret 10 · AA raises strings 5 & 10 a whole step (B→C♯)Fret 5 · A + B + RKLA raises strings 5 & 10 a whole step (B→C♯)B 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♯)Fret 5 · B + C + RKLB 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♯)RKL lowers string 2 a half step (D♯→D); lowers string 9 a half step (D→C♯)
High neck (frets 10–17)
Fret 15 · LKRLKR lowers strings 4 & 8 a half step (E→D♯)Fret 17 · A + BA raises strings 5 & 10 a whole step (B→C♯)B raises strings 3 & 6 a half step (G♯→A)Fret 17 · B + CB 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♯)Fret 17 · 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♯)