Re: is it possible to change midi channels in the middle of a song ?.

[Rick Kimpel]

Ebi Mani wrote:
>Is it possible to specify midi channel numbers for a given voice 
>or switch channels in the middle of a song in lilypond ?.

I know that you can change MIDI instruments in the middle of
a song, and set the MIDI instrument on a per voice basis. That
might give you the flexibility you need.

% snippet modified from 
% http://lilypond.org/doc/v2.18/Documentation/notation/creating-midi-files

\score {
  \new Staff <<
    \new Voice \relative c''' {
      \set midiInstrument = #"flute"
      \voiceOne
      \key g \major
      \time 2/2
      r2 g-"Ch." ~
      g fis ~
      fis4 g8 fis e2 ~
      e4 
      \set midiInstrument = #"violin"
      d8-"Sw." cis d2
    }
    \new Voice \relative c'' {
      \set midiInstrument = #"clarinet"
      \voiceTwo
      b1-"Gt."
      a2. b8 a
      g2. 
      \set midiInstrument = #"violin"      
      fis8-"Sw." e
      fis2 r
    }
  >>
  \layout { }
  \midi {
    \context {
      \Staff
      \remove "Staff_performer"
    }
    \context {
      \Voice
      \consists "Staff_performer"
    }
    \tempo 2 = 72
  }
}

%% End snippet

Good luck!
Rick Kimpel