+void
+Staff_performer::set_instrument (int channel)
+{
+ instrument_ = new Audio_instrument (instrument_string_);
+ instrument_->channel_ = channel;
+ announce_element (Audio_element_info (instrument_, 0));
+ audio_staff_->add_audio_item (instrument_);
+}
+
+void
+Staff_performer::set_instrument_name ()
+{
+ instrument_name_ = new Audio_text (Audio_text::INSTRUMENT_NAME,
+ instrument_string_);
+ announce_element (Audio_element_info (instrument_name_, 0));
+ audio_staff_->add_audio_item (instrument_name_);
+}
+