Carl Dvorcek has been a member of The Steel Guitar Forum since its inception. Before that, probably in 1996, he sent me the copedent for his D-12 pedal steel. The extended E9th is not unusual, but the C6th has features that I’ve never seen elsewhere, including a high A string!
E9
A text version of the E9th chart is also available.
Pedal tunings are tempered as follows:
LKL +F @ 433
LKV +G @ 439.5
LKR -A# @ 439
1 +C# @ 436
+A @ 438.5
2 +A @ 438.5
3 +F# @ 437
+C# @ 436
RKL -D @ 439
--C# @ 437
RKR -D# @ 438
C6
A text version of the C6th chart is also available.