global = {
 s1
  \bar "|."
  }

sop = \relative {
 c'4( d) e f
 }

soptext = \lyricmode {
 Me -- lis -- ma
 }

\new Staff << \new Voice \global \new Voice \sop >> \addlyrics \soptext

\new Staff << \new Voice \global \new Voice \sop \addlyrics \soptext >>