[Lilypond-auto] Issue 4350 in lilypond: \compressFullBarRests and \skipBars need a health warning

[lilypond]

Status: Accepted
Owner: tdanielsmusic
Labels: Type-Documentation

New issue 4350 by tdanielsmusic: \compressFullBarRests and \skipBars need a  
health warning
https://code.google.com/p/lilypond/issues/detail?id=4350

The \compressFullBarRests predef, which simply sets skipBars true, can  
generate incorrectly set music if used carelessly.  The problem is that its  
action is not restricted to rests: it removes bar lines whenever a note  
crosses a bar line.  Notes crossing bar lines is common when setting  
renaissance music in a (semi)modern style with bar lines, or when a note of  
a tuplet crosses a bar line.  Both occurrences are shown in this example  
from Mark Koop:
(see http://lists.gnu.org/archive/html/lilypond-devel/2015-03/msg00212.html)

\version "2.19.18"

{
  \time 2/4
  r4 c'2 r4
  r4 \tuplet 3/2 { c'2 d'4 } r4

  \set Score.skipBars = ##t
  r4 c'2 r4
  r4 \tuplet 3/2 { c'2 d'4 } r4
}

My view is that \skipBars is working as designed, and its action on notes  
can be useful.  See for example its use in ancient music in the NR.  A  
better way of compressing full bar rests, restricted to that purpose, would  
be the best solution, but until then a warning or explanation about its  
wider effect is needed.

Trevor


Attachments:
        skipBars.svg  16.0 KB

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