anchor.diff:    {}
   % environment to render questions
   \newenvironment{RtQuestion}
  -  {\par\noindent\hangindent=25\RtRelPt\hangafter=1}
  +  {\par\noindent\hangindent=25\RtRelPt\hangafter=1\fontsize{<%= @font_size %>\RtRelPt}{<%= @font_leading %>\RtRelPt}}
     {\par}
   % environment to render scr paragraphs
   \newenvironment{RtScr}
  - {\par\leftskip=20\RtRelPt \rightskip=20\RtRelPt \setlength{\parindent}{8\RtRelPt}}
  + {\par\leftskip=20\RtRelPt \rightskip=20\RtRelPt \setlength{\parindent}{8\RtRelPt}\fontsize{<%= @font_size %>\RtRelPt}{<%= @font_leading %>\RtRelPt}}
    {\par}
   % environment to render song paragraphs.
   \newenvironment{RtSong}
  - {\par\leftskip=60\RtRelPt \rightskip=30\RtRelPt \setlength{\parindent}{-8\RtRelPt} \nopagebreak \setlength{\parskip}{0pt plus 0pt minus 0pt}}
  + {\par\leftskip=60\RtRelPt \rightskip=30\RtRelPt \setlength{\parindent}{-8\RtRelPt} \nopagebreak \setlength{\parskip}{0pt plus 0pt minus 0pt}\fontsize{<%= @font_size %>\RtRelPt}{<%= @font_leading %>\RtRelPt}}
    {\par}
   % environment to render split pairs in pdf_recording_merged
   \newenvironment{RtSplitPair}
  
positive.code:   {\par\end{center}}
  % environment to render meta info
  \newenvironment{RtMetaInfo}
    {\par\relscale{0.73}}
    {\par}
  % environment to render .normal
  \newenvironment{RtNormal}
    {}
    {}
  % environment to render .normal_pn
  \newenvironment{RtNormalPn}
    {}
    {}
  % environment to render translator omit in green
  \newenvironment{RtOmit}
  
negative.code:   {\end{minipage}}
  % environment to render stanza paragraphs.
  \newenvironment{RtStanza}
   {\par\leftskip=60\RtRelPt \rightskip=30\RtRelPt \setlength{\parindent}{-8\RtRelPt}\fontsize{<%= @font_size %>\RtRelPt}{<%= @font_leading %>\RtRelPt}}
   {\par}
  % environment to render ### header
  \newenvironment{RtSubTitle}
    {\begin{center}<%= @polyglossia_default_language ? '' : '\titlefont' %>\fontsize{10\RtRelPt}{10.5\RtRelPt}}
    {\end{center}}
  % environment to render # header
  \newenvironment{RtTitle}
    {
      \begin{center}
      <%= @polyglossia_default_language ? '' : '\titlefont' %>
      \fontsize{22\RtRelPt}{26.4\RtRelPt}
    }
    {
      \end{spacing}
  