MIDI, dynamics and expression

[Dario Marrini]

Hi lilypond people,
I'm trying to understand how all this works; there is a short code file as
attachment, with midi and pdf ones;  I tried to use dynamics and other
signs, but the difference on sound between signed (with 'p' and others
signs) and not signed notes it's quite not hearable; I found in docs
instructions about how to modify the output level of each midi instrument ,
and the same about output level of applied signs; every time docs refers to
a scm/midi.scm file, for default settings, but I can't understand its
values; I need to know what defaults settings are, for trying to manage
them. Any help about is very appreciated

regards

dario m.

legature_e_dinamiche.midi
Description: MIDI audio

\version "2.24.1"

global = {
  \key c \major
  \time 4/4
  \tempo "Allegro" 4=128
}

violin = \relative c' {
  \global
  % Qui segue la musica.
  c4 d8 e f g a b c4 b8 a g f e d
  c4\p\cresc\( d8 e f g a b\) c4\f\dim b8 a g f e d 
  c4\p\cresc\( d8 e\) f\( g a b\) c4\ff\dim b8 a g f e d\! 
  c2 r
}

\score {
  \new Staff \with {
    instrumentName = "Violino"
    midiInstrument = "string ensemble 1"
  } \violin
  \layout { }
  \midi {
    \tempo 4=128
  }
}

legature_e_dinamiche.pdf
Description: Adobe PDF document