I'm trying to re-engrave part of a part that has an admittedly-weird double bar indication in the middle of a measure. You can see what I mean, with context, here:
https://imgur.com/BnpooBh (measure 49, aka C).
How can I get that in Lilypond? Obviously `\bar "||"` will give a failed barcheck. I tried \section, but that does the same thing.
About the best way I can come up with is to change the time signature to 2/4 for that measure, but hide the time signature change. Can I do better?
Evan