D Dim — E9 Pedal Steel

D Dim stacks D – F – Ab. 4 bar positions on the E9 neck's ten strings sound exactly that set: fret 6, a slant at frets 10–12, strings 8–6, a slant at frets 13–11, strings 4–2, a slant at frets 12–14, strings 9–7. Each chart shows where the bar lies and which strings the picks sound — tap one to hear it.

These charts are the E9 neck with every pedal up and every knee lever at rest — F#-D#-G#-E-B-G#-F#-E-D-B from string 1 inward — B-D-E-F#-G#-B-D#-E-F#-G# in pitch order, because string 3 sits above strings 1 and 2. The bar lies straight across all ten strings and the picks choose which of them speak; a string whose note is not in the chord stays silent.

That is only the starting point on a pedal steel. Each pedal and lever retunes a few strings while it is held, so the same bar position spells a different chord with a foot or a knee engaged. The copedent page for this neck works out every combination, and where any chord sits with them.

The copedent adds more: with LKL engaged the bar finds it at the nut, one of 11 bar positions that some combination of this neck's pedals and levers reaches.