else if (tag == ly_symbol2scm ("scheme0-markup1-markup2"))
return MARKUP_HEAD_SCM0_MARKUP1_MARKUP2;
else if (tag == ly_symbol2scm ("scheme0-scheme1-scheme2"))
else if (tag == ly_symbol2scm ("scheme0-markup1-markup2"))
return MARKUP_HEAD_SCM0_MARKUP1_MARKUP2;
else if (tag == ly_symbol2scm ("scheme0-scheme1-scheme2"))