\version "2.24.2"



up = \drummode {
   <<
    { sn16^"R" sn16^"L" sn16:128^"R" sn16:128^"L" r2.}
    \new DrumStaff \with {}{
      sn16^"R" sn^"L" sn128^"R" sn^"R" sn^"L" sn^"L" sn^"R" sn^"R" sn^"L" sn^"L" sn^"R" sn^"R" sn^"L" sn^"L" sn^"R" sn^"R" sn^"L" sn^"L"
      r2.
    }
  >>
}

\score {
  \new DrumStaff
  <<
    \new DrumVoice { \voiceOne \up }
  >>
  \layout {
    \override StemTremolo.shape = #'beam-like
  }
}

up = \drummode {
   <<
    { sn16^"R" sn16^"L" sn16:32^"R" sn16:32^"L" r2.}
    \new DrumStaff \with {}{
      sn16^"R" sn^"L" sn32^"R" sn^"R" sn^"L" sn^"L" r2.
    }
  >>

}

\score {
  \new DrumStaff
  <<
    \new DrumVoice { \voiceOne \up }
  >>
  \layout {
    \override StemTremolo.shape = #'beam-like
  }
}