+void
+Part_combine_iterator::solo1 ()
+{
+ if (state_ == SOLO1)
+ return;
+ else
+ {
+ state_ = SOLO1;
+ substitute_both (CONTEXT_SOLO, CONTEXT_NULL);
+
+ kill_mmrest (CONTEXT_TWO);
+ kill_mmrest (CONTEXT_SHARED);
+
+ if (playing_state_ != SOLO1)
+ {
+ if (!solo_one_event_)
+ {
+ solo_one_event_ = new Stream_event
+ (scm_call_1 (ly_lily_module_constant ("ly:make-event-class"),
+ ly_symbol2scm ("solo-one-event")));
+ solo_one_event_->unprotect ();
+ }
+
+ first_iter_->get_outlet ()->event_source ()->broadcast (solo_one_event_);
+ }
+ playing_state_ = SOLO1;
+ }
+}
+