\version "2.18.2"
\include "changePitch.ly"
rhythmPattern = { a16 \tuplet 3/2 { a8 a a } a16 a8 a4 a4 } % a complex rhythm
scoreViolinI = \relative {
  \changePitch \rhythmPattern { c' d d d c b d e }
  f g a b
  c d e f
  \changePitch \rhythmPattern { c, d d d c b d e }
}
scoreViolinII = \relative {
  \changePitch \rhythmPattern { a b b b a b a a }
  f f a a
  c c f f
  \changePitch \rhythmPattern { a b b b a b a a }
}
\score {
  <<
    \new Staff \scoreViolinI
    \new Staff \scoreViolinII
  >>
  \layout { }
}