\include "paper20.ly"

\score {
    \context Staff <<
        \notes { \clef alto \time 2/2 \key f \major }
        \context Voice = un { 
            \notes { b4^\prall \voiceOne g' ~ g'4 f' ~ 
                     f'4 e' ~ e'4 d' ~ 
                     d' c' ~ c'2 } }
        \context Voice = deux { 
            \notes { s4 \voiceOne b8\rest c'8 ~ c'4 ~ c'8 b ~ 
                     b4 ~ b8 a ~ a4 ~ a8 g ~ 
                     g4. g8 ~ \voiceTwo g a ~ a g } }
        \context Voice = trois { 
            \notes { s4 \voiceTwo s4 c'8 a ~ a4 ~ 
                     a8 g ~ g4 ~ g8 f ~ f4 ~ 
                     f8 e ~ e4 } } >>
    \paper { raggedright = ##t}
}