\version "2.14.1"
\include "english.ly"

outline = {
  \time 4/4 s1*2
  \time 3/4 s2.
  \time 4/4 s1*2
}

\score {
  <<
    % Don't craete the ossia staff here, but only when you really want/need it
    \new Staff="main" <<
      \outline
      {
        \repeat unfold 16 { b'16 }
        <<
          { \repeat unfold 60 { b'16 } }
          % Create the ossia staff here:
          \new Staff = "ossia" \with {
            alignAboveContext = "main"
            fontSize = #-3
            \override StaffSymbol #'staff-space = #(magstep -3)
            \override StaffSymbol #'thickness = #(magstep -3)
          }{
            \repeat unfold 22 { b'8 }
            \stopStaff
          }
        >>
      }
    >>
  >>
}