\version "2.18.2"

\header {
  arranger = \theArranger
  composer = \theComposer
  poet = \thePoet
  subtitle = \theSubtitle
  title = \theTitle
}

\score {
  \theSheetMusic
  \layout {
    \context {
      \ChoirStaff
      \accepts Dynamics
    }
    \context {
      \PianoStaff
      \accepts Dynamics
    }
    \context {
      \Staff \RemoveEmptyStaves
      \override VerticalAxisGroup.remove-first = ##t
    }
  }
}

\theFootnotes % comment this out or change it to ##f for success

\score {
  \theUnfoldedMusic
  \midi {
    \context {
      \Score
      tempoWholesPerMinute = \theTempo
    }
  }
}