+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))
+#(ly:expect-warning (_ "system with empty extent"))
+#(ly:expect-warning (_ "didn't find a vertical alignment in this system"))