- bool print_acc
- = (handle == SCM_BOOL_F) || p->get_alteration () == Rational (0)
- || (ev->get_property ("force-accidental") == SCM_BOOL_T);
+ bool print_acc = scm_is_false (handle)
+ || p->get_alteration () == Rational (0)
+ || to_boolean (ev->get_property ("force-accidental"));