As always, a small, working example will help diagnose the problem and demonstrate to us what is going wrong. For instance, this snippet works fine for me:
%%% \version "2.22.2" theMusic = \relative { \tempo "Largo" 4 = 50 c''4 c c c | \tempo "Alegro" 4 = 120 c4 c c c | } \score { \new Staff \theMusic \layout {} \midi {} } %%% -- Knute Snortum -- Knute Snortum On Wed, Mar 16, 2022 at 1:47 AM Jacques Menu <imj-muz...@bluewin.ch> wrote: > > Hello Mario, > > The \midi block is your friend: > > \book { > \score { > << > > \new Staff = "Part_POne_Staff_One" > \with { > } > << > \context Voice = "Part_POne_Staff_One_Voice_One" << > \Part_POne_Staff_One_Voice_One > >> > >> > > >> > > \layout { > \context { > \Score > autoBeaming = ##f % to display tuplets brackets > } > \context { > \Voice > } > } > > \midi { > \tempo 16 = 360 > } > } > > } > > > Le 16 mars 2022 à 05:08, Mario Bolognani <mario.bologn...@gmail.com> a écrit : > > I’m using LilyPomd 2.20 with Frescobaldi 3.1.3 on a MacBook M1 with MacOSX > Monterey (last version). With \time 3)1 and \tempo \breve (or breve.) = xx > the midi output seems not responding to \tempo changes. Any suggestion? > > Many thanks > > > Mario Bolognani > mario.bologn...@gmail.com > > > >