\language "deutsch"

scoreA = \markup\score {
  {\stopStaff \tiny \stemUp h'8[ 8] }
  \layout {
    \context {
      \Staff
      \remove Clef_engraver
      \remove Time_signature_engraver
      \override Stem.length-fraction = #0.7
      \override Beam.length-fraction = #0.8
      \override Beam.beam-thickness = #0.45
    }
    \context {
      \Score proportionalNotationDuration = #(ly:make-moment 1/8)
    }
    indent = 0}

}

scoreB = \markup\score {
  {\stopStaff\time 2/8 \tiny \stemUp \times 2/3 { h'8.[ h'] } }
  \layout {
    \context {
      \Staff
      \remove Clef_engraver
      \remove Time_signature_engraver
      \override Stem.length-fraction = #0.7
      \override Beam.length-fraction = #0.8
      \override Beam.beam-thickness = #0.45
    }
    \context {
      \Score proportionalNotationDuration = #(ly:make-moment 1/8)
    }
    indent = 0}
}

{
  \tempo \markup { "Some tempo marking"
                        
                   \bracket\concat {
                         \scoreA
                         " " =
                         \scoreB
  
  }} 4=120 c'4
}