Re: Issue 1723 in lilypond: beam fails to extend over rest, intermittently

[lilypond]

Updates:
        Summary: beam fails to extend over rest, intermittently
        Labels: -Priority-High Priority-Medium

Comment #3 on issue 1723 by address@hidden: beam fails to extend over  
rest, intermittently
http://code.google.com/p/lilypond/issues/detail?id=1723

This occurs intermittently in several recent versions.  With one version I  
saw the bug when running Lilypond from the command line, but not when  
spawning it from vi, so it could be uninitialized memory, or more likely  
the engraving depends on an order of objects in some array or list, and  
that order depends on details of how memory is allocated.

It is hard to be sure, but I think the minimum recipe is an automatic beam  
from-rest-to-rest across a bar line:
{ \time 1/4 r8[ g' a' r]  }  #(ly:set-option 'delete-intermediate-files #f )

The postscript files for buggy- versus good-output purposefully draw beams  
of the wrong- or correct length  -- no zero-width beams or anything like  
that.

Correction to the workaround: the *Stem*, not the Beam, gets the override.
  \override Stem #'stemlet-length = #0.1  % or anything non-zero

Attachments:
        1723.preview.png  1.5 KB