~Performance ();
DECLARE_CLASSNAME (Performance);
+ static Performance *unsmob (SCM p) {
+ return dynamic_cast <Performance *> (Music_output::unsmob (p));
+ }
+ static bool is_smob (SCM p) {
+ return Music_output::is_smob (p) && unsmob (p);
+ }
+
void add_element (Audio_element *p);
virtual void process ();
void remap_grace_durations ();