[no subject]

[olivier . cloirec]

Hi everybody!

I've typeset the beggining of the 1st mvt of the 2nd Rachmaninov piano concerto.
I'd like to listen to it with a midi player, but there are some problems with
the instrumentation...
Acutually there are more than 16 tracks. The problem is that the midi output
sets one channel per track so it can't put more than 16 tracks even if some of
them could use the same channel :((. I don't know if it's very clear...

I look to the C++ code, an I'm guessing the problem comes from here:
// from lily/performance.cc

void
Performance::output (Midi_stream& midi_stream)
{
 int tracks_i = audio_staffs_.size () + 1;

 // ugh
 int clocks_per_4_i = 384;

 midi_stream << Midi_header (1, tracks_i, clocks_per_4_i);
 output_header_track (midi_stream);
 progress_indication ("\n");
 progress_indication (_ ("Track ... "));
 int channel = 0;
 for (int i =0; i < audio_staffs_.size (); i++)
   {
     Audio_staff *s = audio_staffs_[i];
     if (verbose_global_b)
   progress_indication ("[" + to_string (i)) ;

     /*
   MIDI players tend to ignore instrument settings on
   channel 10, the percussion channel by default.
      */
     if (channel == 9)
    channel++;
     if (s->channel_ < 0)
    s->channel_ = channel;
     s->output (midi_stream, channel++); // oooops!!
     if (verbose_global_b)
   progress_indication ("]");
   }
}

I send the source if you want to test it...
I'm using lilypond 1.7.27

Thanks in advance for your help!

PS: you have to run lilypond on the ts-score.ly file

ts-score.ly
Description: Binary data

ts-music.ly
Description: Binary data