HI Helge,
Here’s what I would do:
1. \consists Span_bar_engraver to the ChoirStaff (not the Staff!)
2. \omit it right off the top
3. \undo the \omit just before the final barline
%%% SNIPPET BEGINS
\version "2.24.4"
\new ChoirStaff <<
\new Staff
{ \relative c'' { \omit ChoirStaff.SpanBar c4 d e f c, d e f \undo \omit
ChoirStaff.SpanBar \bar "|." } }
\new Staff
{ \relative c' { g4 a b c c, d e f \bar "|." } }
>>
\layout {
\context {
\ChoirStaff
\consists Span_bar_engraver
}
}
%%% SNIPPET ENDS
There may be a more elegant way…?
Hope that helps!
Kieren.
