\version "2.21.0"

iNeedAnEntranceCue = <>^\markup {
  \bold \italic \larger \with-color #red
  "Cue"
}

flute = \new Staff \with {
  instrumentName = Flute
} \relative c' {
  R1*2
  \iNeedAnEntranceCue
  c4 d e f
}

oboe = \new Staff \with {
  instrumentName = Oboe
} \relative c' {
  R1*2
  \iNeedAnEntranceCue
  c4 d e f
}

bassoon = \new Staff \with {
  instrumentName = Bassoon
  \clef bass
} \relative {
  R1*2
  \iNeedAnEntranceCue
  c4 d e f |
}

violinI = \new Staff \with {
  instrumentName = ViolinI
} \relative c' {
  R1*1
  r4
  \iNeedAnEntranceCue
  d e f |
  c d e f |
}

violinII = \new Staff \with {
  instrumentName = ViolinII
} \repeat unfold 3 \relative c' {
  c4 d e f |
}

viola = \new Staff \with {
  instrumentName = Viola
  \clef alto
} \relative c' {
  R1*2
  \iNeedAnEntranceCue
  c4 d e f
}

\score {
  {
    \new StaffGroup <<
      \flute
      \oboe
      \bassoon
      \violinI
      \violinII
      \viola
    >>
    \bar "|."
  }
  \layout {}
}