#(set-global-staff-size 20)

Time = {\time 6/8}

Musicone = \relative c''{
  \Time
  R2.
  R2.
  r4. c4. ~
  c8 b a b4.
  c4 b8 c4 a8
  e'2.
}

Musictwo = \relative c''{
  \Time
  r8 c8 d e4 c8
  b8 a b g4.
  a8( g f e4.
  f g)
  a r
  R2.
}

\score
{
  \new Staff {
    \partcombine \Musicone \Musictwo
  }
  \layout {}
}