+ if (key_ev_)
+ {
+ SCM pitchlist = key_ev_->get_property ("pitch-alist");
+ SCM proc = ly_lily_module_constant ("alterations-in-key");
+
+ SCM acc = scm_call_1 (proc, pitchlist);
+
+ Pitch key_do (0,
+ scm_to_int (scm_caar (pitchlist)),
+ scm_to_int (scm_cdar (pitchlist)));
+
+ Pitch c_do (0, 0, 0);
+
+ SCM c_pitchlist
+ = ly_transpose_key_alist (pitchlist,
+ pitch_interval (key_do, c_do).smobbed_copy ());
+
+ /* MIDI keys are too limited for lilypond scales.
+ We check for minor scale and assume major otherwise. */
+
+ SCM third = scm_assoc (scm_from_int (2),
+ c_pitchlist);
+ bool minor = (scm_is_pair (third)
+ && scm_is_integer (scm_cdr (third))
+ && scm_to_int (scm_cdr (third)) == FLAT);
+
+ audio_ = new Audio_key (scm_to_int (acc),
+ !minor);
+
+ Audio_element_info info (audio_, key_ev_);
+ announce_element (info);
+ key_ev_ = 0;
+ }