"Set property @var{sym} in music expression @var{mus} to @var{val}.")
{
Music * sc = unsmob_music (mus);
- SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "grob");
+ SCM_ASSERT_TYPE(sc, mus, SCM_ARG1, __FUNCTION__, "music");
SCM_ASSERT_TYPE(gh_symbol_p (sym), sym, SCM_ARG2, __FUNCTION__, "symbol");
bool ok = type_check_assignment (sym, val, ly_symbol2scm ("music-type?"));