diff -up mscore-1.3/mscore/demos/CMakeLists.txt.noprelude mscore-1.3/mscore/demos/CMakeLists.txt
--- mscore-1.3/mscore/demos/CMakeLists.txt.noprelude	2013-04-12 13:14:40.578638487 -0400
+++ mscore-1.3/mscore/demos/CMakeLists.txt	2013-04-12 13:14:46.185638856 -0400
@@ -28,7 +28,6 @@ install(FILES
       inv10.mscx
       inv13.mscx
       praeludium1.mscx
-      prelude.mscx
       promenade.mscx
       scales.mscx
       sonata16.mscx