I've never played Sneaky Pete's B6th, Jim, but this copedent isn't hard to understand when you sit down at it. It's a D6th - just like the middle 8 strings of C6th moved up a step.
- The first two pedals work like the "A" and "B" pedals of E9th.
- The 3rd pedal raises the root tone D a step. Very useful like the E9th "C" pedal.
- LKL works like the E9th "F" lever. It makes a B7 chord at the nut.
- LKR gives you the Maj7 note, a standard C6th change.
- LKR also drops the low string to E, matching a standard guitar's range.
- RK changes the 6th chord to a 7th chord.
- bonus: p2 gives you all of the notes of the open G Dobro tuning
- another bonus: p2+p3+RK turns the whole tuning into C6th
[tab] p1 p2 p3 LKL LKR RK
F# G
D E D#
B C# C
A B
F# G
D E D#
B C
G F# E [/tab]