Printing music with different time signatures

In the following snippet, two parts have a completely different time signature, yet remain synchronized.

The bar lines can no longer be printed at the Score level; to allow independent bar lines in each part, the Default_barline_engraver and Timing_translator are moved from the Score context to the Staff context.

If bar numbers are required, the Bar_number_engraver should also be moved, since it relies on properties set by the Timing_translator; a \with block can be used to add bar numbers to the relevant staff.

\version "2.24"

global = {
  \time 3/4 s2.*3 \break
  s2.*3
}

\layout {
  \context {
    \Score
    \remove "Timing_translator"
    \remove "Bar_number_engraver"
    \override SpacingSpanner.uniform-stretching = ##t
    \override SpacingSpanner.strict-note-spacing = ##t
    proportionalNotationDuration = #(ly:make-moment 1/64)
  }
  \context {
    \Staff
    \consists "Timing_translator"
  }
  \context {
    \Voice
    \remove "Forbid_line_break_engraver"
    tupletFullLength = ##t
  }
}

Bassklarinette = \new Staff \with {
  \consists "Bar_number_engraver"
  barNumberVisibility = #(every-nth-bar-number-visible 2)
  \override BarNumber.break-visibility = #end-of-line-invisible
} <<
  \global
  {
    \clef treble
    \time 3/8 d''4. |
    \time 3/4 r8 des''2( c''8) |
    \time 7/8 r4. ees''2 ~ |
    \time 2/4 \tupletUp \tuplet 3/2 { ees''4 r4 d''4 ~ } |
    \time 3/8 \tupletUp \tuplet 4/3 { d''4 r4 } |
    \time 2/4 e''2 |
    \time 3/8 es''4. |
    \time 3/4 r8 d''2 r8 |
  }
>>

Perkussion = \new StaffGroup <<
  \new Staff <<
    \global
    {
      \clef percussion
      \time 3/4 r4 c'2 ~ |
      c'2. |
      R2. |
      r2 g'4 ~ |
      g'2. ~ |
      g'2. |
    }
  >>
  \new Staff <<
    \global {
      \clef percussion
      \time 3/4 R2. |
      g'2. ~ |
      g'2. |
      r4 g'2 ~ |
      g'2 r4 |
      g'2. |
    }
  >>
>>

\score {
  <<
    \Bassklarinette
    \Perkussion
  >>
}