LY_DEFINE_MEMBER_FUNCTION(Class,constructor, #Class "::constructor",\
0,0,0,\
(),\
- "Construct a " #Class " music iterator")\
+ "Construct a @code{" #Class "} music iterator")\
{ \
SCM val = (new Class)->self_scm(); \
scm_gc_unprotect_object (val);\