#define del_property(x) internal_del_property (ly_symbol2scm (x))
#ifndef NDEBUG
-#define set_property(x, y) internal_set_property (ly_symbol2scm (x), y, __FILE__, __LINE__, __FUNCTION__)
+/*
+ TODO: include modification callback support here, perhaps
+ through intermediate Grob::instrumented_set_property( .. __LINE__ ).
+ */
+#define set_property(x, y) internal_set_property (ly_symbol2scm (x), y)
#else
#define set_property(x, y) internal_set_property (ly_symbol2scm (x), y)
#endif