Dmytro O. Redchuk wrote:

On Wed, Feb 28, 2007 at 06:07:20PM +0200, Dmytro O. Redchuk wrote:
On Wed, Feb 28, 2007 at 04:19:14PM +0200, Dmytro O. Redchuk wrote:
Hi,

  i'm just starting to learn LilyPond, so i have questions:

  1. Is it possible to mix separate bar rules (like \sepbarrules in
     MusixTeX) for different instruments and "common" bar rules for them
     (like \stdbarrules in MusixTeX)?
About this question:
    How to bind "Span_bar_engraver" to *-line-breaking-callback to make
    spanned bar lines at the end of every line?
    (To "before-" or "after-line-breaking-callback"?)

    Or is there any other solution?

    Or is there any other way to mix spanned bar lines with separated
    ones?

  Okay, i've found something so far, looks working:

       \layout {
               \context {
                       \ChoirStaff \consists "Span_bar_engraver"
                       \override SpanBar #'break-visibility = #center-invisible
               }
       }


  But, really, CAN I mix spanned with non-spanned? Is it ever possible?

Certainly! First of all, instead of adding the span bar engraver to the ChoirStaff, you could just as well use a StaffGroup. To turn these spanned bar lines off and
on between different bars, it should work to do
\override ChoirStaff.SpanBar #'transparent = ##f
and
\override ChoirStaff.SpanBar #'transparent = ##f
respectively.

  /Mats


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