Re: Some Midi Output Problems

[grick]


> You can reduce the volume of the default piano in the same way, by
> setting 
> midiMinimumVolume and midiMaximumVolume in the piano staff. Note,
> though, 
> that these controls only take effect on encountering a dynamic mark,
> so be 
> sure you have a mark at the beginning of the piano notes.

There is no piano staff, only a chordmode section (something like this):
--
Accordi = \chordmode 
{
  \repeat unfold 60 {
    f2:9+ bes2:7
  }

  \repeat unfold 2 {
    f1
    f1
    ees1
    ees1
  }
}
--
Nor "\set Staff.midiXVolume" nor "\ppp" on chords (like f1\ppp) works.

Just to know this chordmode section is included in the staff this way:
--
\score {
  \new StaffGroup 
  <<
    \new ChordNames {
      \set chordChanges = ##t
      \Accordi
    }
    \new Staff << \WithChords \global \Tromba >>
    \new Staff << \WithChords \global \Alto >>
    \new Staff << \WithChords \global \Tenore >>
    \new Staff << \WithChords \global \Baritono >>
  >>
  \layout { }
}
--   

> 
> BTW, an easier way may be to simply use quieter dynamic marks on the
> music 
> of the instruments you want to reduce - these also affect the MIDI
> volume.

The "Control MIDI" dynamic marks are printed in the sheet (and, by the
way, i have to replace the real dynamics). I want to avoid this.

> 
> > To do this i use often "staccato" notes (a4-. a4-. a4-. a4-.).
> >
> > I expect my midi output sound like (a8 r8 a8 r8 a8 r8 a8 r8) but
> sadly it 
> > does not interpret them at all and sound like a simple (a4 a4 a4
> a4).
> >
> > I can simple write (a8 r8) version everywhere but the sheet become
> really 
> > difficult to read for the performers.
> >
> > Is there a way to avoid to mantain a double version of the sheets?
> (one 
> > for the performers with a4-. version and one for the midi output
> with a8 
> > r8 one?)
> 
> Sorry, apart from using separate versions I don't know how to do this
> other 
> than by writing a Scheme procedure to add the staccato marks in the
> midi 
> \score block.

Can you point me to some docs about this Scheme procedures? Something
specific for lilypond i found a general intro on the guile site.

> 
> Trevor
> 
Thank you Trevor for the answers!