X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scm%2Fpart-combiner.scm;h=81beaf6ae7d83c6dab583c1297dcd061fe775f3c;hb=d70dbf8d247e8b21a2a9c0b61939be319f6aafdc;hp=cc051cd5e639d23d0ddaf24e9bb16e874fb32432;hpb=1aa6d40d595d25202bd7b5ce82edf320845dc7a4;p=lilypond.git

diff --git a/scm/part-combiner.scm b/scm/part-combiner.scm
index cc051cd5e6..81beaf6ae7 100644
--- a/scm/part-combiner.scm
+++ b/scm/part-combiner.scm
@@ -2,7 +2,7 @@
 ;;;;
 ;;;;  source file of the GNU LilyPond music typesetter
 ;;;; 
-;;;; (c) 2004--2006	Han-Wen Nienhuys <hanwen@xs4all.nl>
+;;;; (c) 2004--2009	Han-Wen Nienhuys <hanwen@xs4all.nl>
 
 ;; todo: figure out how to make module,
 ;; without breaking nested ly scopes
@@ -230,8 +230,10 @@ Voice-state objects
     
     (set! (ly:music-property m 'elements) (list m1 m2))
     (set! (ly:music-property m 'split-list)
-	  (determine-split-list (reverse! (cdr (assoc "one" evs1)) '())
-				(reverse! (cdr (assoc "two" evs2)) '())))
+      (if (and (assoc "one" evs1) (assoc "two" evs2))
+  	  (determine-split-list (reverse! (cdr (assoc "one" evs1)) '())
+	  			(reverse! (cdr (assoc "two" evs2)) '()))
+	  '() ))
     m))
 
 (define-public (determine-split-list evl1 evl2)