C m(maj7) — Resonator Guitar

C m(maj7) stacks C – D# – G – B, but no bar position on the Resonator Guitar's open G (GBDGBD) strings sounds that set: at every fret, and on every short slant a steel can hold, a tone the chord needs is missing or too few strings land on it.

A guitarist would reach for a fretted grip here. A squareneck has no fretting hand, so this page charts nothing rather than a shape no steel can play — the qualities this tuning does spell are on the C chord list, marked shape by shape.