The following behaves as expected:
\repeat volta 2 {
c1
\alternative {
{ d1 }
{ e1 }
}
}
... and produces a repeat section with alternate ending brackets; however,
if an unfold is added thus:
\repeat volta 2 {
\repeat unfold 2 { c1 }
\alternative {
{ d1 }
{ e1 }
}
}
... the result is that the \alternative bars are applied to the unfolded
repeat, as though equivalent to this:
\repeat volta 2 {
c1 d1 c1 e1
}
... instead of this:
\repeat volta 1 {
c1 c1
\alternative {
{ d1 }
{ e1 }
}
}
- Nikolai
