\version "2.18.2"
\header {title = "Simultaneous slurs in a tuplet?"}

global = {
  \key c \major
  \time 4/4
}

flamencoGuitar = \relative c {
  \global
  % I NEED TO ADD A SECOND SLUR ABOVE THE FIRST HERE
 \tuplet 3/2 << {<d\=1_( g\=2^( c e >8[ <f\=1) a\=2)>  <f a c e >] } >>
}

\score {
  \new StaffGroup  <<
    \new Staff { \clef "treble_8" \flamencoGuitar }
      \new TabStaff  \flamencoGuitar
  >>
}