input/test/short-part-combine.ly

   1
   2 \score{
   3         \context Staff <
   4                 \context Voice=one \partcombine Voice
   5                         \context Thread=one \notes\relative c''
   6                                 {
   7                                         d e f
   8                                 }
   9                         \context Thread=two \notes\relative c''
  10                                 {
  11                                         d d d
  12                                 }
  13                 >
  14 }