for( int i=0; i<track->plugin_set.size(); ++i ) {
PluginSet *plugin_set = track->plugin_set[i];
int64_t pos = track->to_units(position, 0);
for( int i=0; i<track->plugin_set.size(); ++i ) {
PluginSet *plugin_set = track->plugin_set[i];
int64_t pos = track->to_units(position, 0);