\version "2.18.2"

theme = { 
  \repeat unfold 14 a'1 
}

music = {
  \repeat unfold 4 c'1
  \theme
  \repeat unfold 4 e'1
  \tag ensemble \theme 
  \tag jacques { \compressFullBarRests R1*14 }
  \repeat unfold 4 c'1
  \theme
  \tweak self-alignment-X #RIGHT
  \mark\markup "Total = 54 meas."
  \bar "|."
}

\new StaffGroup <<
 \new Staff <<
  \set Staff.instrumentName = #"Ensemble"
    \keepWithTag ensemble \music 
  >>
  \new Staff <<
    \set Staff.instrumentName = #"Jacques"
    \keepWithTag jacques \music 
  >>
>>

\new Staff <<
  \set Staff.instrumentName = #"Jacques"
  \keepWithTag jacques \music 
>>