Am Fr., 18. Jan. 2019 um 11:01 Uhr schrieb Werner Arnhold
<wer...@arnhold-berlin.de>:
>
> Dear list,
>
> I often need to have Midi output with different volume or instruments in
> some voices. Here an example:
>
> \version "2.18.2"
>
> global = {
> \key c \major
> \time 4/4
> }
>
> soprannoten = \relative c'' {
> g e e2 f4 d d2
> }
>
> altnoten = \relative c'' {
> c2 g g2 b4 f
> }
>
> \score {
> \new ChoirStaff <<
> \new Staff <<
> \set Staff.instrumentName = #"Sopran"
> \new Voice = "sopran" <<
> \set midiInstrument = #"flute"
> \global
> \soprannoten
> >>
> >>
> \new Staff <<
> \set Staff.instrumentName = #"Alt"
> \new Voice = "alt" <<
> \set midiInstrument = #"violin"
> \global
> \altnoten
> >>
> >>
> >>
> \layout{}
> \midi{
> \tempo 4 = 80
> \context {
> \Staff
> \remove "Staff_performer"
> }
> \context {
> \Voice
> \consists "Staff_performer"
> }
> }
> }
>
> This works fine. Now I tried to separate the "\context" parts in the
> midi section like
>
> verschiedene_stimmen = {
> \context \Staff \remove "Staff_performer"
> \context \Voice \consists "Staff_performer"
> }
>
> score {
> .
> .
> .
> \midi{
> \verschiedene_stimmen
> }
> }
>
> Lilypond complains about unvalid escape sequence "\Staff" at the Place
> of the definition, unexpected "\remove" and so on. That happens even if
> I do not call the defined macro in the midi section.
>
> What will be the reason and how can I make it better. I intend to
> collect such often used constructs in a separate file.
>
> Thanks in advance!
>
> Werner
Hi Werner,
looking at your example, there is no need to move "Staff_performer" at all.
Just set midiInstrument in Staff, You could do so with \set Staff.midiInstrument
But this is done better in \with { ... }, otherwise it may happen you
meet issue 34 in some cases. Same for instrumentName.
Only if you have more than one Voice per Staff moving
"Staff_performer" would make sense.
To store the settings in a callable variable you could do:
\version "2.18.2"
soprannoten = \relative c'' {
g e e2 f4 d d2
}
altnoten = \relative c'' {
c2 g g2 b4 f
}
verschiedene_stimmen_midi = \midi {
\context { \Staff \remove "Staff_performer" }
\context { \Voice \consists "Staff_performer" }
}
\score {
\new ChoirStaff <<
\new Staff <<
\new Voice = "sopran" \with { midiInstrument = #"flute" }
{ \voiceOne \soprannoten }
\new Voice = "alt" \with { midiInstrument = #"violin" }
{ \voiceTwo \altnoten }
>>
>>
\layout{}
\midi {
\verschiedene_stimmen_midi
%% needs to be called after 'verschiedene_stimmen_midi'
\tempo 4 = 80
}
}
HTH,
Harm
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