\paper {
  bookTitleMarkup = \markup {
    \override #'(baseline-skip . 3.5)
    \column {
      \fill-line { \fromproperty #'header:dedication }
      \override #'(baseline-skip . 3.5)
      \column {
        \huge \larger \bold
        \fill-line {
          \larger \fromproperty #'header:title
        }
        \fill-line {
          \large \smaller \bold
          \larger \fromproperty #'header:subtitle
        }
        \fill-line {
          \smaller \bold
          \fromproperty #'header:subsubtitle
        }
        \fill-line {                        
           \fromproperty #'header:poet
           { \large \bold \fromproperty #'header:instrument }
           "" 
        }
        \fill-line { 
           ""
           \fromproperty #'header:composer
        }
        \fill-line {
          \fromproperty #'header:meter
          \fromproperty #'header:arranger
        }
      }
    }
  }
}


\header { 
  title = "title_line" 
  poet = "poet_line"
  instrument = "instrument_line"
  composer = "composer_line_____20________30________40________50________60________70________80"
  meter = "meter_line"
  arranger = "arranger_line"
}

{s1*50}