--- /dev/null
+\version "2.14.0"
+
+\header {
+
+ texidoc = "
+Combine several kinds of stems in parallel voices.
+"
+
+}
+
+\new Voice { \time 4/1
+ << c'\breve e'8 >>
+ << c'8 e'\breve >> |
+ << c'\longa e'1 >> |
+ << c'1 e'\longa >> |
+ << c'2 e'1 >>
+ << c'1 e'2 >>
+ << c'2 e'4 >>
+ << c'4 e'2 >>
+ << c'2 e'8 >>
+ << c'8 e'2 >>
+}