\version "2.10.20"
voiceone = {
\time 2/2 \partial 2  a8 b c d e4 f g a
}
voicetwo = {
\set Timing.measurePosition = #(ly:make-moment -1 2)
\time 2/2 \partial 2  a8 b c d e4 f g a
}
\score{
<<	\context Staff="1"
	{
	    \voiceone
	}
	\context Staff="2"
	{
	    \voicetwo
	}
>>

	\layout {
	  \context { \Staff
		     \consists "Timing_translator" 
		     \consists "Default_bar_line_engraver"
		     \consists "Repeat_acknowledge_engraver"

		   }
	  \context { \Score
	    \remove "Timing_translator" 
	    \remove "Default_bar_line_engraver"
	    \remove "Repeat_acknowledge_engraver"
		   }
	}

}