// push a new phrasing_slur onto stack.
// (use temp. array to wait for all phrasing_slur STOPs)
Grob* phrasing_slur = new Spanner (get_property ("PhrasingSlur"));
- Slur::set_interface (phrasing_slur);
+ Slur::set_interface (phrasing_slur); // can't remove.
SCM s = get_property ("phrasingSlurBeginAttachment");
if (gh_symbol_p (s))
{