Re: is MultiMeasureRest breakable?

[Keith OHara]

On Sat, 04 May 2013 19:21:23 -0700, Kieren MacMillan <address@hidden> wrote:

> What I mean is, if the barline in another [polymetric] staff falls in the 
> middle of a MultiMeasureRest, could Lilypond [automatically] split the measure, 
> perhaps putting a parenthesized MMR on the following system?

This came up not very long ago, but I had forgotten
http://code.google.com/p/lilypond/issues/detail?id=2863

So it is not the rests that are refusing to break across lines, but the bars 
themselves.

The Bar_line_engraver does two jobs, printing barlines at the right places, and 
forbidding line-breaks at all other places.  You only want the first job.  The 
rule now is that a line can break when every staff has a bar (more 
specifically, whenever every Bar_line_engraver says it is okay); maybe that 
should be when *any* staff has a bar.