Index: lily/context.cc
===================================================================
RCS file: /sources/lilypond/lilypond/lily/context.cc,v
retrieving revision 1.89
diff -u -r1.89 context.cc
--- lily/context.cc	11 Oct 2006 23:56:44 -0000	1.89
+++ lily/context.cc	16 Oct 2006 21:13:54 -0000
@@ -509,7 +509,9 @@
 Context::remove_context (SCM)
 {
   /* ugh, the translator group should listen to RemoveContext events by itself */
-  implementation ()->disconnect_from_context ();
+  Translator_group *impl = implementation ();
+  if (impl)
+    impl->disconnect_from_context ();
   disconnect_from_parent ();
 }
 
Index: lily/translator-group-ctors.cc
===================================================================
RCS file: /sources/lilypond/lilypond/lily/translator-group-ctors.cc,v
retrieving revision 1.6
diff -u -r1.6 translator-group-ctors.cc
--- lily/translator-group-ctors.cc	6 Jan 2006 09:13:24 -0000	1.6
+++ lily/translator-group-ctors.cc	16 Oct 2006 21:13:55 -0000
@@ -10,7 +10,6 @@
 #include "score-performer.hh"
 #include "engraver-group.hh"
 #include "performer-group.hh"
-#include "recording-group-engraver.hh"
 #include "warn.hh"
 
 /*
@@ -27,8 +26,6 @@
     return new Score_engraver ();
   else if (sym == ly_symbol2scm ("Score_performer"))
     return new Score_performer ();
-  else if (sym == ly_symbol2scm ("Recording_group_engraver"))
-    return new Recording_group_engraver ();
 
   programming_error ("Couldn't find type");
   scm_flush (scm_current_error_port ());
Index: lily/translator-group.cc
===================================================================
RCS file: /sources/lilypond/lilypond/lily/translator-group.cc,v
retrieving revision 1.158
diff -u -r1.158 translator-group.cc
--- lily/translator-group.cc	22 Sep 2006 07:51:37 -0000	1.158
+++ lily/translator-group.cc	16 Oct 2006 21:13:55 -0000
@@ -202,7 +202,7 @@
   Translator_group *tg
     = dynamic_cast<Translator_group *> (c->implementation ());
 
-  if (dir == DOWN)
+  if (tg && dir == DOWN)
     {
       tg->precomputed_translator_foreach (idx);
       tg->call_precomputed_self_method (idx);
@@ -212,7 +212,7 @@
        s = scm_cdr (s))
     precomputed_recurse_over_translators (unsmob_context (scm_car (s)), idx, dir);
 
-  if (dir == UP)
+  if (tg && dir == UP)
     {
       tg->precomputed_translator_foreach (idx);
       tg->call_precomputed_self_method (idx);
@@ -225,7 +225,7 @@
   Translator_group *tg
     = dynamic_cast<Translator_group *> (c->implementation ());
 
-  if (dir == DOWN)
+  if (tg && dir == DOWN)
     {
       (tg->*tg_ptr) ();
       translator_each (tg->get_simple_trans_list (), ptr);
@@ -235,7 +235,7 @@
        s = scm_cdr (s))
     recurse_over_translators (unsmob_context (scm_car (s)), ptr, tg_ptr, dir);
 
-  if (dir == UP)
+  if (tg && dir == UP)
     {
       translator_each (tg->get_simple_trans_list (),
 		       ptr);
Index: ly/declarations-init.ly
===================================================================
RCS file: /sources/lilypond/lilypond/ly/declarations-init.ly,v
retrieving revision 1.104
diff -u -r1.104 declarations-init.ly
--- ly/declarations-init.ly	24 Aug 2006 14:45:10 -0000	1.104
+++ ly/declarations-init.ly	16 Oct 2006 21:13:56 -0000
@@ -97,16 +97,8 @@
 
 #(set-default-paper-size (ly:get-option 'paper-size))
 
-
 partCombineListener = \layout {
     \context {
-	\Voice
-	\consists Note_heads_engraver
-	\consists Rest_engraver
-	\type "Recording_group_engraver"
-	recordEventSequence = #notice-the-events-for-pc
-    }
-    \context {
 	\Score
 	skipTypesetting = ##t
 	ignoreBarChecks = ##t