--- /dev/null
+
+\version "2.16.0"
+
+\header {
+ texidoc = "Stem length and stem-begin-position can be set manually.
+"
+}
+
+\relative c' {
+ \autoBeamOff
+ \stemUp
+ a8 aes''8
+ \override Stem #'length = #20
+ a,,8
+ \revert Stem #'length
+ aes''!8
+ \stemNeutral
+ \override Stem #'stem-begin-position = #-2
+ c,8
+}