\version "2.19.81"
\language "english"

left = \relative c {
  \time 2/2
  <<
    {
      s4 <a' c>2 q4~ |
      q q2 <fs a>4 |
    }
    \\
    {
      <f f'>2-> <e e'>-> |
      <ef ef'>-> <d d'>-> |
    }
  >>
}

\score {
    \new Staff = "left" { \clef bass \left }
  \layout { }
}