input/test/beam-extreme.ly

   1 \score{
   2         \notes\relative c''{
   3                 [g8 c c,]
   4                 [c16 c'' a f]
   5                 \stemup
   6                 [c,,32 c'' a f]
   7
   8         }
   9         \paper{
  10                 linewidth=-1.;
  11         }
  12 }