Score with variable measure lengths

LilyPond determines the measure length from the time signature, so to implement variable measure lengths, one has to set the time signature for every measure, but suppress the display of the time signature change by setting its stencil to ##f.

\version "2.24"

%% http://lsr.di.unimi.it/LSR/Item?id=731

% LSR modified by P.P.Schneider on Feb.2014

\new Staff \with { \omit TimeSignature } {
  \relative c'' {
    \time 3/4
    c4 c c
    \time 2/4
    c4 c
    \time 3/4
    c4 c c
    \time 2/4
    c4 c
    \time 5/4
    c4 c c c c
    \time 2/4
    c4 c
  }
}