\markup {
  \column{
    \fill-line{
      \center-column{
        \fontsize #2 \bold"Part I."
        \fontsize #1.5 "Preparatory Exercises for the Acquirement of Agility, Independence,"
        \fontsize #1.5 "Strength and Perfect Evenness in the Fingers."
        \vspace #0.2
        \fontsize #2 \bold 1
      }
    }
    \justify{
      test
    }
  }
}
\score{
  \new PianoStaff <<
    \override PianoStaff.InstrumentName #'self-alignment-X = #RIGHT
    \set PianoStaff.instrumentName = \markup{\right-align\bold\fontsize #3 1.}
    \new Staff = "up" {
      \clef treble
      \time 2/4
      \new Voice
\include "dir/rh1.ily"
    } 
    \new Staff = "down" {
      \clef bass
      \new Voice
\include "dir/lh1.ily"
    }
  >>
  \layout{
    system-count = 6
  }
}