\version "2.12.2"

\score { 
  \new GrandStaff
  << 
    %%upper staff
    \override  Score.SystemStartBrace #'stencil = ##f
    { 
      \relative c'' {
        \key g \minor
        \tempo Allegro
        r8 c c c b g bes e,  
        a f aes d, g[ es16 f] g8 g'
        a,[ f'] b,[ g'] es[ c] 
      }
    }
    %%lower staff
    { 
      \new Staff 
        \override  Staff.VerticalAxisGroup #'minimum-Y-extent = #'(-4 . 8)
        \key g \minor
        \relative c'' {
          <<
            { 
              \new Voice {
                \voiceOne r8 c c c b4 bes
                a aes g g'
                f g es 
              }
            }
            { 
              \new Voice {
                \voiceTwo r2 g,4 e
                f d es8. \parenthesize f16 g4
                a b c 
              }
            }
          >>
        }
    }
  >>
  
  \layout {
    \context {
      \Score
	\remove "System_start_delimiter_engraver"
    }
  }
}