\version "2.19.32"
\paper { #(set-paper-size "a9") indent = 0 }
#(ly:set-option 'point-and-click #f)
\header { tagline = ##f }
{
  \alterBroken control-points #'(
                                  ((0 . -2)(0 . 1)(4 . -1)(4 . 2))
                                  ((10 . 0)(12 . 0)(12 . 2)(10 . 2))
                                ) Slur
  1( \break
  1)
}