\version "2.19.45"
compositionTwoMusic = \relative {
  d'4 e g2 |
}

compositionTwoScore = \score {
  \new StaffGroup <<
    \new Staff { \clef "treble_8" \compositionTwoMusic }
    \new TabStaff { \clef "moderntab" \new TabVoice \compositionTwoMusic }
  >>
  \layout { indent = 0 }
}