C# aug7b9 — E9 Pedal Steel
C# aug7b9 has no bar or slant position on the E9 Pedal Steel with the pedals up.
C# aug7b9 stacks C# – D – E# – G## – B, and with every pedal up and every lever at rest no bar position on the E9 Pedal Steel sounds that set: at every fret, and on every short slant, a tone it needs is missing or too few strings carry it.
A pedal steel does not stop there. With C pedal + LKV engaged, a straight bar at fret 11 spells it — 2 changes is the fewest it takes, and the copedent page lists every position, 8 in all.