\version "2.10.20"
lineone = { \relative c'{ a\breve b c d e f g a,}}
linetwo = {\relative c' {r4 a'\breve b c d e f g a,}}

\score{
    <<

	\context Staff="1"
	{
	    \repeat unfold 10 \lineone
	}
	\context Staff="2"
	{
	    \repeat unfold 10 \linetwo
	}
    >>
	\layout {
	}
}