{
for (Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
track->write_immediate_event ((*n)->on_event().size(), (*n)->on_event().buffer());
}
{
for (Notes::iterator n = notes.begin(); n != notes.end(); ++n) {
track->write_immediate_event ((*n)->on_event().size(), (*n)->on_event().buffer());
}