X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fambitus-engraver.cc;h=cd5402b2a0ac50768f80209484a92dc9d435c3c6;hb=4790df2a2c3cdcd14479e8ece60a99ab803f6197;hp=ab2897f16de90b09d30af7bdfc6df0e388776345;hpb=38cb4178d57c3d964f5e4187be34d7372b4a646b;p=lilypond.git

diff --git a/lily/ambitus-engraver.cc b/lily/ambitus-engraver.cc
index ab2897f16d..cd5402b2a0 100644
--- a/lily/ambitus-engraver.cc
+++ b/lily/ambitus-engraver.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 2002--2006 Juergen Reuter <reuter@ipd.uka.de>
+  (c) 2002--2007 Juergen Reuter <reuter@ipd.uka.de>
 
   Han-Wen Nienhuys <hanwen@xs4all.nl
 */
@@ -89,10 +89,7 @@ void
 Ambitus_engraver::process_music ()
 {
   /*
-   * Ensure that ambitus is created in the very first timestep (on
-   * which lily does not call start_translation_timestep ()).
-   * Otherwise, if a voice begins with a rest, the ambitus grob will
-   * be placed after the rest.
+   * Ensure that ambitus is created in the very first timestep
    */
   if (!ambitus_)
     create_ambitus ();
@@ -149,7 +146,7 @@ Ambitus_engraver::finalize ()
 				start_key_sig_);
 
 	  Rational sig_alter = (handle != SCM_BOOL_F)
-	    ? ly_scm2rational (scm_cdr (handle)) : Rational (0);
+	    ? robust_scm2rational (scm_cdr (handle), Rational (0)) : Rational (0);
 
 	  if (sig_alter == p.get_alteration ())
 	    {
@@ -158,7 +155,7 @@ Ambitus_engraver::finalize ()
 	    }
 	  else
 	    {
-	      accidentals_[d]->set_property ("alteration", scm_from_int (int (Real (Rational (4) * p.get_alteration ()))));
+	      accidentals_[d]->set_property ("alteration", ly_rational2scm (p.get_alteration ()));
 	    }
 	}
       while (flip (&d) != DOWN);