re: : temporary staff for divisi

[Stefan Thomas]

Dear community,
I've got a little bit more knowledge. I found out that I can place a staff exactly with alignAboveContext
But how can I get Angular brackets for the two first violins?

\version "2.12.2"
 violineA = \context Staff ="ViolineA"
 { \set Staff.instrumentName = "Violine 1"
  \set Staff.shortInstrumentName="Vlne.1"

   
   c'' 4 d'' e'' f'' g'' a'' b'' c'''\break
 <<
   \new Staff \with { alignAboveContext = "ViolineA" } 
   { \set Staff.shortInstrumentName="Vln.1"
     c'''4^"solo"( d''' e''' f''' g''' a''' b''' c'''') }
   { c'' 4 d'' e'' f'' g'' a'' b'' c''' } >>
 }
 violineB = \context Staff ="ViolineB" 
 { \set Staff.instrumentName = "Violine 2" 
   \set Staff.shortInstrumentName="Vlne. 2"
   \repeat "unfold" 2 { c'' 4 b' a' g' f' e' d' c' }}
\score { 
  \new GrandStaff <<
   \new ChoirStaff \violineA 
    \violineB >>

}