Hi Knut,
Do you mean something like:
\version "2.18"
\layout {
\context {
\Staff
\override BarLine.transparent = ##t
}
}
<<
\new GrandStaff <<
\new Staff \new Voice = "A" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "A" \lyricmode { \repeat unfold 10 bla }
\new Staff \new Voice = "B" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "B" \lyricmode { \repeat unfold 10 bla }
\new Staff \new Voice = "C" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "C" \lyricmode { \repeat unfold 10 bla }
>>
\new GrandStaff <<
\new Staff \new Voice = "D" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "D" \lyricmode { \repeat unfold 10 bla }
\new Staff \new Voice = "E" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "E" \lyricmode { \repeat unfold 10 bla }
\new Staff \new Voice = "F" {
\repeat unfold 10 { c''1 }
\revert Staff.BarLine.transparent
\bar "|."
}
\new Lyrics \lyricsto "F" \lyricmode { \repeat unfold 10 bla }
>>
>>