Symbol half_slur_middlepart(Real &dx, int dir);
Symbol big_slur(int dy, Real &dx, int dir);
Symbol text(String style, String text, int align = 1);
Symbol half_slur_middlepart(Real &dx, int dir);
Symbol big_slur(int dy, Real &dx, int dir);
Symbol text(String style, String text, int align = 1);